Question

( 7 - 10x ) - ( 8 - 8x ) + ( 10x + 6 ) = -8

( 2x + 3 ) - ( 5x + 11 ) = 7 + ( 13 - 2x )​

Answer 1

Ответ:

Пошаговое объяснение:

( 7 - 10x ) - ( 8 - 8x ) + ( 10x + 6 ) = -8

7- 10х -8 + 8х + 10х + 6= -8

-10х + 8х + 10х= -8 -7+ 8 -6

8х= -13

х= - 13 :8

х= - 1, 625

( 2x + 3 ) - ( 5x + 11 ) = 7 + ( 13 - 2x )​

2х + 3 - 5х - 11= 7+ 13- 2х

2х -5х + 2х= 20 -3 +11

-х= 28

х= -28

Answer 2

Ответ:

Пошаговое объяснение:

(7 - 10х) - (8 - 8х) +(10х + 6) = -8

7 - 10х - 8 + 8х + 10х + 6 = -8

8х + 5 = -8

8х = -8 - 5

8х = -13

х = -13 : 8

х = -13/8

х = -1. 5/8

(2х + 3) - (5х + 11) = 7 + (13 - 2х)

2х + 3 - 5х - 11 = 7 + 13 - 2х

-3х - 8 = 20 - 2х

-3х + 2х = 20 + 8

-х = 28

х = -28