8x+y+1=7(y-1)

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Solution for 8x+y+1=7(y-1) equation:


Simplifying
8x + y + 1 = 7(y + -1)

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

Reorder the terms:
1 + 8x + y = 7(-1 + y)
1 + 8x + y = (-1 * 7 + y * 7)
1 + 8x + y = (-7 + 7y)

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

Solving for variable 'x'.

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

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

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

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

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

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

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

Combine like terms: 7y + -1y = 6y
8x = -8 + 6y

Divide each side by '8'.
x = -1 + 0.75y

Simplifying
x = -1 + 0.75y

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