Question

a) 2x + 10 = 16
b) 10x - 8 = 8x
c) 3x + 5 = 5x -13
d) 5(7 -x) = 31 – x

Answer 1

Respuesta:

Explicación paso a paso:

a)

2x + 10 = 16

2x = 16 - 10

2x = 6

x = 6/2

x=3

b)

10x - 8 = 8x

10x - 8x = 8

2x = 8

x = 8/2

x = 4

c)

3x + 5 = 5x -13

5 + 13 = 5x - 2x

18 = 3x

18/3 = x

6 = x

d)

5(7 -x) = 31 – x

35 - 7x = 31 – x

35 - 31 = 7x – x

4 = 6x

4/6=x

2/3 = x