Question

resolva as equações a) 9x-4=50 b)5x+2=77 c) 6x-2=40 d)7x+4= 39

Answer 1

a. 9x-4=50
9x=50+4
9x=54
x=54/9
x=6

b. 5x+2=77
5x=77-2
5x=75
x=75/5
x=15

c. 6x-2=40
6x=40+2
6x=42
x=42/6
x=7

d. 7x+4=39
7x=39-4
7x=35
x=35/7
x=5

Bons estudos!

Answer 2

Bom dia,

a) 9x-4=50
9x=50+4
9x=54
x=54/9
x=6

b) 5x+2=77
5x=77-2
5x=75
x=75/5
x=15

c)6x-2=40
6x=40+2
6x=42
x=42/6
x=7

d)7x+4=39
7x=39-4
7x=35
x=35/7
x=5

Espero ter te ajudado! Bons estudos!