Question

encontre o valor x b) 4X – 12 = 12 c) 8 + 6X = 2X + 12

d) X + 3X + 20 = 20

Answer 1

Resposta:

b) 4X – 12 = 12

4X = 12 + 12

4X = 24

X = 24/4

X = 6

c) 8 + 6X = 2X + 12

6X - 2X = 12 - 8

4X = 4

X = 4/4

X = 1

d) X + 3X + 20 = 20

X + 3X = 20 - 20

4X = 0

X = 0/4

X = 0