Question

Resolva a equação
A) x-1=3
B)2x+7=
C)4x=16
D)3×=9

Answer 1

a) x=2

b)x=7/2

c)x=4

d)x=3

Answer 2

$a)x - 1 = 3 \\ x = 3 + 1 \\ x = 4 \\ b)2x + 7 = falta \: a \: outra \: parte \\ c)4 x= 16 \\ x = \frac{16}{4} \\ x = 4 \\ d)3x = 9 \\ x = \frac{9}{3} \\ x = 3$