x=6
Step-by-step explanation:
7x-2=40
7x=42
x=42/7
x = 6
7x - 2 = 40
7x - 2 + 2 = 7x
40 + 2 = 42
7x = 42
7x / 7 = x
42 / 7 = 6
is means division by fractions
step-by-step explanation: