Question

equação do 1 grau F)×-1+7=5× G)×+1=9 h)17+×=13

Answer 1

F) x - 1 + 7 = 5x
6 = 5x - x
6 = 4x
x = 6/4, simplificando por 2
x = 3/2 = 1,5

G) x + 1 = 9
x = 9 - 1
x = 8

H) 17 + x = 13
x = 13 - 17
x = - 4

Answer 2

f) x - 1 + 7 = 5x
-1 + 7 = 5x - x
6 = 4x
x = $\frac{6}{4}$

g) x + 1 = 9
x = 9 - 1
x = 8

h) 17 + x = 13
x = 13 - 17
x = -4