Answer:
D. s=32
Step-by-step explanation:
To solve the equation, we want to find out what s is. In order to do this, we have to get s by itself. Perform the opposite of what is being done to the equation. Keep in mind, everything done to one side, has to be done to the other.
–5(s – 30) = –10
s-30 is being multiplied by -5. The opposite of multiplication is division. Divide both sides by -5.
–5(s – 30)/-5= –10/-5
s-30=-10/-5
s-30=2
30 is being subtracted from s. The opposite of subtraction is addition. Add 30 to both sides.
s-30+30=2+30
s=2+30
s=32
Let's check our solution. Substitute 32 in for s in the original equation. If our solution is correct, the left side of the equation should match the right side.
–5(s – 30) = –10
-5(32-30)=-10
-5(2)= -10
-10=-10
The statement above is true, so we know that s is equal to 32, and D is the correct answer.
