Question

2X-34=120
10x+5=3x+121
6x+12=12x
10x+5=3x+12
3x=12

TEMA: despeje de variables

Answer 1

Respuesta:

Resolvemos:

2x - 34 = 120

2x= 120 + 34

2x = 86

x= 86/2

x= 43

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10x + 5 = 3x + 121

10x - 3x = 121 - 5

7x = 116

x= 116/7

x= 16.57

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6x + 12 = 12x

6x - 12x= -12

-6x = -12

x = -12/ 6

x= - 2

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10x + 5= 3x + 12

10x - 3x = 12 - 5

7x = 7

x= 7/7

x= 1

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3x= 12

x= 12/3

x= 4

Explicación paso a paso:

saludos!!!