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3 years ago

SDAY: ve the equation: 5x – 2(x + 7) = -5

Mathematics

1 answer:

pogonyaev3 years ago

5 0

5x – 2(x + 7) = -5

mutiply the bracket by -2

(-2)(x)= -2x

(-2)(7)= -14

5x-2x-14=-5

3x-14= -5

move -14 to the other side, sign changes from -14 to +14

3x-14+14= -5+14

3x= 9

divide by 3 for both sides

3x/3= 9/3

x= 3

Answer: x= 3

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Step-by-step explanation:

The picture of the question in the attached figure

we know that

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