Question

aplica la propiedad distrivuida:

a) 3.(x-20)=66
b) 7.(x+10)=770
c) 8.(x+5)=200


aiudaaaa por favor es para hoyy día ​

Answer 1

resolucion :

$a) \: 3(x - 20) = 66 \\ 3x - 60 = 66 \\ \boxed{ x = 42}\\ b) \:7(x + 10) = 770 \\ 7x + 70 = 770 \\ \boxed{x = 100} \\ c) \: 8(x + 5) = 200 \\ 8x + 40 = 200 \\ \boxed{x = 20}$

꧁♕⚡THΣ PRIΠCΣ⚡♕꧂

Answer 2

Respuesta:

A_

$3.(x - 20) = 66$

$3x - 60 = 66$

$3x = 66 + 60$

$3x = 126$

$x = 126 \div 3$

$x = 42$

B_

$7.(x + 10) = 770$

$7x + 70 = 770$

$7x = 770 - 70$

$7x = 700$

$x = 700 \div 7$

$x = 100$

C_

$8.(x + 5) = 200$

$8x + 40 = 200$

$8x = 200 - 40$

$8x = 160$

$x = 160 \div 8$

$x = 20$