Question

c .3(3x – 5) + 3(2x – 6) = 42
d .2(–3x + 3) – 3(x + 5) = x + 11
e .– (–2x – 1) – (x + 3) = x + 16

les doy coronita

Answer 1

Respuesta:

c . 3(3x – 5) + 3(2x – 6) = 42

15 . x = 42 + 33

15 . x = 75

x =  $\frac{75}{15}$

x = 5

d . 2(–3x + 3) – 3(x + 5) = x + 11

-10 . x = 11 + 9

-10 . x = 20

x = -$-\frac{20}{10}$

x =   - 2

e . – (–2x – 1) – (x + 3) = x + 16

x−2=x+16

x−2−x=x+16−x

−2=16

−2+2=16+2

0=18