Question

Determine o valor de X:

a) 2x + 8 = 16
b) 4x + 4 = 2x - 6
c) 5 ( x + 3 ) = 35
d) 2 ( x + 8 ) - 3 ( x + 4 ) = 24
ME AJUDEM !!! POR FAVOR !!! VALE 5 PONTOS !!! OBRIGADA.

Answer 1

a) 2x+8=16

2x=16+8

2x=24

x=24:2 (se divide)

x= 12

b)4x+4=2x-6

4x-2x=-6-4

2x=-10

x=-10:2

x=-5

c) 5(x+0)=35

5x+0=35

5x=35+0

5x=35

x=35:5

x= 7

d) 2(x+8) - 3(x+4)=24

2x+16-3x+12=24

2x-3x=24-16-12

x= -4