Question

150 - 1/2s = 120 + 1/4s

Answer 1

Answer:

40

Step-by-step explanation:

First, get all the s on the same side

add 1/2s to both sides

$150 = 120 + \frac{3}{4}s$

Next, subtract 120 from both sides to get s by itself

$30 = \frac{3}{4}s$

Now, multiply both sides by 4 to get rid of the fraction

120 = 3s

Lastly, divide both sides by 3 to get s by itself

s = 40

Answer 2

Answer:

s=40

Step-by-step explanation:

Combine s and 1/2.

150−s/2=120+1/4s

Combine 1/4and s.

150−s/2=120+s/4

Move all terms containing s to the left side of the equation.

150−3s/4=120

Move all terms not containing s to the right side of the equation.

−3s/4=−30

Multiply both sides of the equation by −4/3.

−4/3 x (−3s/4)=−4/3 x−30 => S=40