Question

5x-10=4x+5

2x-7=x+5

2×+10=16


me ajudemmm. please.

Answer 1

a)

5x-10=4x+5

Isola o x:

5x-4x=5+10

1x=15

x=15/1

x=15

R:x=15

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b)
2x-7=x+5 

Isola o x :

2x-x=5+7

1x=12

x=12/1

x=12

R:x=12

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c)

2x+10=16

Isola o x:

2x=16-10

2x=6

x=6/2

x=3

R:x=3
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