Question

Qual a equação das contas?
A) 2×=10
B)2×+1=-9
C) 5×+1=2x-8
D)3x=18
E) 7×-1

Answer 1

A) x=5
B) 2x=-10 x=-5
C) 5x-2x=-8 3x=-9 x=-3
D) x=6
E) 7x=1 x=1/7