Question

como eu resolvo 3(5-x)-3(1-2x)=42​

Answer 1

3(5-x)-3(1-2x)=42​

15 - 3x -3 + 6x =42

-3x+6x= -15 +3 +42

+3x = +30

X= 30/3 = 10

X= 10