Question

encontre a soluçao das seguites equaçoes:
a)5x=2x+3 b)3(2-2x)=-7x

Answer 1

a)  5x = 2x + 3 
5x - 2x = 3
3x = 3
x = 3/3
x = 1
b) 3 ( 2 - 2x ) = -7x
6 - 6x = - 7x
- 6x + 7x = - 6
x = -6