Question

5n + 8 = 43

8w − 15 = 57
f/5-22=-25

(means fraction. 2nd number is the denominator. thanks :))

Answer 1

n=7 w=9 f= -15

Explanation:

5n+8=43 Subtract both sides by 8

5n=35 Divide both sides by 5

n=7

8w-15=57 Add 15 to both sides

8w=72 Divide both sides by 8

w=9

f/5-22=-25 Add 22 to both sides

f/5=-3 Multiply both sides by 5

f= -15