5x-y+3(x+1)=-7

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Solution for 5x-y+3(x+1)=-7 equation:


Simplifying
5x + -1y + 3(x + 1) = -7

Reorder the terms:
5x + -1y + 3(1 + x) = -7
5x + -1y + (1 * 3 + x * 3) = -7
5x + -1y + (3 + 3x) = -7

Reorder the terms:
3 + 5x + 3x + -1y = -7

Combine like terms: 5x + 3x = 8x
3 + 8x + -1y = -7

Solving
3 + 8x + -1y = -7

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3' to each side of the equation.
3 + 8x + -3 + -1y = -7 + -3

Reorder the terms:
3 + -3 + 8x + -1y = -7 + -3

Combine like terms: 3 + -3 = 0
0 + 8x + -1y = -7 + -3
8x + -1y = -7 + -3

Combine like terms: -7 + -3 = -10
8x + -1y = -10

Add 'y' to each side of the equation.
8x + -1y + y = -10 + y

Combine like terms: -1y + y = 0
8x + 0 = -10 + y
8x = -10 + y

Divide each side by '8'.
x = -1.25 + 0.125y

Simplifying
x = -1.25 + 0.125y

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