Question

a) 3x+4=2x-3 b) 7x+6-2x=3x c) 4(2x+3)=x+5 d) 4a-8=a+1

Answer 1

Respuesta:

Explicación paso a paso:

a) 3x + 4 = 2x - 3

3x - 2x = -3 - 4

x = -7

b) 7x + 6 - 2x = 3x

7x - 2x - 3x = - 6

2x = - 6

x = -6/2

x = - 3

c) 4 (2x + 3 ) = x + 5 se aplica propiedad distributiva

8x + 12 = x + 5

8x - x = 5 - 12

7x = - 7

x = -7/7

x = - 1

d) 4a - 8 = a + 1

4a - a = 1 + 8

3a = 9

a = 9/3

a = 3