Question

Determine a raiz de cada equações a seguir: a) X-17=9 b) 2x=-7 c)3x+2=2x-11 d) 2x=16

Answer 1

A) x-17=9
x=9+17
x=26
b)2x=-7
x=-7/2
c)3x+2=2x-11
3x-2x=-11-2
x=-13
d)2x=16
x=16/2
x=8