Hey people, i need some help i tried to do this but i don't know what im doing help me out here please...
1.x/4 +1 = -5
a. -2****
b. 16
c. 4
d. -24
2. 6x + 29 = 5
a. -4**
b. -18
c. 204
d. -144
3. combine like terms.
-21a +16a
1. -5a****
2. 5a
3. 37a
4. -37a
4. simplifiy the expression.
9a - b - 2a -10b
a. -7a + 11b
b. 11a + 9b***
c.-11a - 9b
d. 7a - 11b
5. 5(x+10) + x
1. 6x + 16
2. 5x + 15***
3. 6x + 50
4. 4x - 50
6. -4n + 7 + 2n = 1
a. 1
b. 3****
c.-3
d. 4
7. 4(y - 4) = 8
a. -2
b. 2***
c. 4
d.6
super Urgent please help me!!! and please explain to me how you got the answer because i need to know
1,4,5,7 are wrong.
4(y - 4) = 8
y-4 = 2
y = 6
or
4y-16 = 8
4y = 24
y = 6
thanks but what about the others?
what, you're not gonna take another look at them?
You got some right, so try again on the other two.
When you get your answer, try replacing the variable with a value (say, 1 or 2) and see whether the two expressions evaluate to the same number.
I'd be happy to help you with these problems! Let's go through each of them step by step:
1. To solve the equation x/4 + 1 = -5, we need to isolate the variable x.
First, subtract 1 from both sides of the equation:
x/4 = -6
Next, multiply both sides of the equation by 4 to get rid of the fraction:
4(x/4) = 4(-6)
x = -24
So, the correct answer is d. -24.
2. To solve the equation 6x + 29 = 5, we want to isolate the variable x.
First, subtract 29 from both sides of the equation:
6x = 5 - 29
6x = -24
Next, divide both sides of the equation by 6 to solve for x:
x = -24/6
x = -4
So, the correct answer is a. -4.
3. To combine like terms in the expression -21a + 16a, we want to add or subtract the coefficients in front of the variable a.
-21a + 16a can be simplified as (-21 + 16)a.
-21 + 16 equals -5, so the simplified expression is -5a.
So, the correct answer is 1. -5a.
4. To simplify the expression 9a - b - 2a - 10b, we want to combine like terms by adding or subtracting the coefficients in front of each term.
The expression can be rearranged as (9a - 2a) + (-b - 10b).
Combining like terms, we have 7a - 11b.
So, the correct answer is b. 11a + 9b.
5. To simplify the expression 5(x + 10) + x, we want to distribute the 5 to the terms inside the parentheses and then combine like terms.
5(x + 10) can be expanded as 5x + 50.
So, the expression becomes 5x + 50 + x.
Combining like terms, we have 6x + 50.
So, the correct answer is 1. 6x + 16.
6. To solve the equation -4n + 7 + 2n = 1, we want to isolate the variable n.
First, combine like terms on the left side of the equation:
-4n + 2n + 7 = 1
This simplifies to -2n + 7 = 1.
Next, subtract 7 from both sides of the equation:
-2n = 1 - 7
-2n = -6
Finally, divide both sides of the equation by -2 to solve for n:
n = -6/-2
n = 3
So, the correct answer is b. 3.
7. To solve the equation 4(y - 4) = 8, we want to isolate the variable y.
First, distribute the 4 to the terms inside the parentheses:
4y - 16 = 8
Next, add 16 to both sides of the equation:
4y = 8 + 16
4y = 24
Finally, divide both sides of the equation by 4 to solve for y:
y = 24/4
y = 6
So, the correct answer is b. 6.
I hope these explanations help you understand how to solve these types of problems. Let me know if you have any further questions!