Seudónimo Seudónimo

13-01-2021
Mathematics

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can someone solve x - 8 = -3x + 12

and x + 12 = -x - 6

STEP BY STEP PLEASE? !

Respuesta :

imranhafeez73 imranhafeez73

13-01-2021

Answer:

x-8= -3x+12

adding 8 and 3x on both sides

x-8+8+3x= -3x+3x+12+8

x+3x=20

4x=20 divide by 4

x=5

x+12= -x-6

adding x and subtacating 12 on both sides

x+x+12-12= -x+x-6-12

2x = -18 divide by 2

x= -9

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