Question

1- Resolva as equações abaixo:

a) 4x -5 = 11

b)3x+8= 38

c)7x -8= 4x +22​

Answer 1

Resposta:

Olá!!!

$\sf4x-5=11\\\\ \sf4x=11+5\\\\ \sf4x=16\\\\ \sf x=16÷4\\\\ \boxed{\sf x=4}$

$\sf3x+8=38\\\\ \sf3x=38-8\\\\ \sf3x=30\\\\ \sf x=30÷3\\\\ \boxed{\sf x=10}$

$\sf7x-8=4x+22\\\\ \sf7x-4x=22+8\\\\ \sf3x=30\\\\ \sf x=30÷3\\\\ \boxed{\sf x=10}$

Att:MIRANDA ♡

Answer 2

a) 4x - 5 = 11

4x = 11 + 5

4x = 16

x = 16/4

x = 4

b) 3x + 8 = 38

3x = 38 - 8

3x = 30

x = 30/3

x = 10

c) 7x - 8 = 4x + 22

7x - 4x = 22 + 8

3x = 30

x = 30/3

x = 10