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
-5a****
5a
37a
-37a
9a-b-2a-10b simplify
-7a + 11b
11a + 9b
-11a-9b
7a-11b
?????
solve -4n + 7 + 2n=1
1
3
-3
4
solve 4(y-4)=8
The first two are right. The last one is wrong.
9a-b-2a-10b = 7a-11b
solve -4n + 7 + 2n=1
---> -2n = -6
n = 3
solve 4(y-4)=8
divide by 4
y-4 = 2
y = 6
To solve the equation x/4 + 1 = -5, you can follow these steps:
1. Subtract 1 from both sides of the equation:
x/4 = -6
2. Multiply both sides of the equation by 4 to eliminate the fraction:
4 * (x/4) = 4 * (-6)
x = -24
Therefore, the correct answer is D) -24.
To solve the equation 6x + 29 = 5, you can follow these steps:
1. Subtract 29 from both sides of the equation:
6x = 5 - 29
6x = -24
2. Divide both sides of the equation by 6 to isolate x:
(6x)/6 = (-24)/6
x = -4
Therefore, the correct answer is A) -4.
To combine like terms -21a + 16a, you simply add the coefficients of the same variable:
-21a + 16a = (-21 + 16)a = -5a
Therefore, the correct answer is -5a.
To simplify 9a - b - 2a - 10b, you can combine like terms by adding or subtracting the coefficients of the variables:
9a - b - 2a - 10b = (9a - 2a) + (-b - 10b) = 7a - 11b
Therefore, the correct answer is 7a - 11b.
To solve the equation -4n + 7 + 2n = 1, you can follow these steps:
1. Combine like terms on the left side of the equation:
(-4n + 2n) + 7 = 1
-2n + 7 = 1
2. Subtract 7 from both sides of the equation:
-2n = 1 - 7
-2n = -6
3. Divide both sides of the equation by -2 to isolate n:
(-2n)/-2 = (-6)/-2
n = 3
Therefore, the correct answer is 3.
To solve the equation 4(y - 4) = 8, you can follow these steps:
1. Distribute the 4 to the terms inside the parentheses:
4y - 16 = 8
2. Add 16 to both sides of the equation:
4y - 16 + 16 = 8 + 16
4y = 24
3. Divide both sides of the equation by 4 to isolate y:
(4y)/4 = 24/4
y = 6
Therefore, the correct answer is y = 6.