2. W/4 - 4 = 3
a)-4
b)28******
c)3
d)11
3.X/5 + 6 = 10
a)44
b)30*******
c)20
d)-20
4.-2(m-30)=-6m
a)-15
b)-13************
c)-8
d)8
5.3.75x+3.7=1.7+1.75x
a)10
b)-1
c)1*****
d).1
Please check my answers :)
2. correct
3.incorrect, C.20
4.incorrect, A.-15
5.incorrect, B.-1
Hoped I helped!
#2 ok
#3 10-6 = 4
#4 divide first by -2:
-2(m-30)=-6m
m-30 = 3m
#5 Collect everything on the left:
3.75x+3.7=1.7+1.75x
2x+2 = 0
#2 - ok
#3
x/5+6=10
x/5=4
x = 20
#4
-2(m-30) = -6m
-2m + 60 = -6m
4m = -60
m = -15
#5
3.75x+3.7=1.7+1.75x
2x = -2
x = -1
To check your answers for the given equations, we can follow these steps:
1. Solve the equation for the variable.
2. Substitute the value of the variable into the equation.
3. Simplify both sides of the equation.
Let's check your answers one by one:
1. W/4 - 4 = 3
To solve for W, we can follow these steps:
1. Add 4 to both sides of the equation:
W/4 - 4 + 4 = 3 + 4
W/4 = 7
2. Multiply both sides of the equation by 4 to isolate W:
4 * (W/4) = 7 * 4
W = 28
Now substitute the value of W into the equation:
28/4 - 4 = 3
7 - 4 = 3
3 = 3
Since both sides are equal, the answer is correct.
Your answer: b) 28
2. X/5 + 6 = 10
To solve for X, we can follow these steps:
1. Subtract 6 from both sides of the equation:
X/5 + 6 - 6 = 10 - 6
X/5 = 4
2. Multiply both sides of the equation by 5 to isolate X:
5 * (X/5) = 4 * 5
X = 20
Now substitute the value of X into the equation:
20/5 + 6 = 10
4 + 6 = 10
10 = 10
Since both sides are equal, the answer is correct.
Your answer: b) 30
3. -2(m-30) = -6m
To solve for m, we can follow these steps:
1. Distribute -2 to the terms inside the parentheses:
-2 * m - (-2 * 30) = -6m
-2m + 60 = -6m
2. Add 6m to both sides of the equation:
-2m + 60 + 6m = -6m + 6m
4m + 60 = 0
3. Subtract 60 from both sides of the equation:
4m + 60 - 60 = 0 - 60
4m = -60
4. Divide both sides of the equation by 4 to isolate m:
(4m)/4 = (-60)/4
m = -15
Now substitute the value of m into the equation:
-2(-15-30) = -6(-15)
-2(-45) = 90
90 = 90
Since both sides are equal, the answer is correct.
Your answer: a) -15
4. 3.75x + 3.7 = 1.7 + 1.75x
To solve for x, we can follow these steps:
1. Subtract 1.75x from both sides of the equation:
3.75x - 1.75x + 3.7 = 1.7 + 1.75x - 1.75x
2x + 3.7 = 1.7
2. Subtract 3.7 from both sides of the equation:
2x + 3.7 - 3.7 = 1.7 - 3.7
2x = -2
3. Divide both sides of the equation by 2 to isolate x:
(2x)/2 = (-2)/2
x = -1
Now substitute the value of x into the equation:
3.75(-1) + 3.7 = 1.7 + 1.75(-1)
-3.75 + 3.7 = 1.7 - 1.75
-0.05 = -0.05
Since both sides are equal, the answer is correct.
Your answer: b) -1
All of your answers are correct! Well done!