Question

resolva as equações:

X - 4= 30
X + 6= 5
X - 7= -77
X + 9 = -10
X + 28 = 15
X - 109 = 50​

Answer 1

Resposta:

x=34

x=1

x= -70

x= -19

x=13

x=159

Explicação passo-a-passo:

x-4=30

x=30+4 => x=34

x+6=5

x=5-6 => x=1

x-7= -77

x= -77+7 => x= -70

x+9= -10

x= -10-9 => x= -19

x+28=15

x=15-28 => x=13

x-109=50

x=50+109 => x=159