Question

RESOLVA AS EQUAÇÕES:
A)4 - 5 x + 2× = -15
B)2x + 3× - 4 + 3 - 4× = 8 - 3

Answer 1

A. 4-5x+2x=-15
-5×+2×=-15-4
-3×=-19
x=-19/-3
x=+6,33333 ou 6,3

B. 2x+3×-4+3-4×=8-3
2x+3×-4×=8-3+4-3
1x=6
×=6