Please help me with this show me the steps please

The objective for solving equations for variables is to get the x terms on one side and the non-x terms on the other side.

7) r + sx = t

sx = t - r (Subtract r from both sides)

x = (t - r) / s (Divide both sides by s)

8) m = 2x + n

m - n = 2x (Subtract n from both sides)

(m - n) / 2 = x (Divide both sides by 2)

x = (m - n) / 2 ("Flip" the equation, this is optional but this is how you usually write your answer, it will be in the form x = something.)

9) 4x - 5c = 3c

4x = 8c (Add 5c to both sides; 5c + 3c = 8c)

x = 2c (Divide both sides by 4; 8c / 4 = 2c)

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

answer: sensy

step-by-step explanation: