Question

Resolva as equações

h) x - 7 = - 7 i) x + 9 = - 1 j) x + 28 = 11 k) x - 109 = 5 L) x - 39 = - 79 m) 10 = x + 8

Answer 1

h)  x - 7 = -7
x = -7 + 7
x = 0

i) x + 9 = - 1
x = - 1 - 9
x = -10

j) x + 28 = 11
x = 11 - 28
x = - 17

k) x - 109 = 5
x = 5 + 109
x = 114

l) x - 39 = -79
x = -79 + 39
x = - 40

m) 10 = x + 8 
x = 10 - 8
x = 2