Question

ME AJUDEM POR FAVOR!!
EQUAÇAO DE 1 GRAU.
a ) 2(x + 5) -4 = 26
b ) 3 (3x +8) -5x = x-3
c ) 2 (x-3) +8x +4=5 (x+2)​

Answer 1

Explicação passo-a-passo:

a ) 2(x + 5) - 4 = 26

2x + 10 - 4 = 26

2x = 26 + 4 - 10

2x = 20

x = 20/2

x = 10

b ) 3(3x + 8) - 5x = x - 3

9x + 24 - 5x = x - 3

9x - 5x - x = - 3 - 24

3x = - 27

x = - 27/3

x = - 9

c ) 2(x - 3) + 8x + 4 = 5(x + 2)

2x - 6 + 8x + 4 = 5x + 10

2x + 8x - 5x = 10 + 6 - 4

5x = 12

x = 12/5

x = 2,4