P=3r + 2s you need to get all the numbers and variables on the other side of the equation so that s is alone.
P -3r = 2s Subtract the 3r from both sides.
P- 3r /2 =s now divide the whole amount P-3r by 2 and you've got your answer!
Answer:
the 3rd one
Step-by-step explanation:

Multiply both sides of the equation by 3.

Subtract 6x on both sides.

Combine 2x and −6x to get −4x.

Add 20 to both sides. Any value plus zero results in its same value.

Divide both sides by −4.

Divide 20 by −4 to get −5.

<h2>{ Pisces04 }</h2>
Answer:
4x + 7 = 3
Step-by-step explanation:
let the number be x
4 times x = 4x
sum of 4x and 7 = 4x + 7
Sum of 4x + 7 is 3 becomes;
4x + 7 = 3