(2x+y)-(7x-8y)=

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Solution for (2x+y)-(7x-8y)= equation:


Simplifying
(2x + y) + -1(7x + -8y) = 0

Remove parenthesis around (2x + y)
2x + y + -1(7x + -8y) = 0
2x + y + (7x * -1 + -8y * -1) = 0
2x + y + (-7x + 8y) = 0

Reorder the terms:
2x + -7x + y + 8y = 0

Combine like terms: 2x + -7x = -5x
-5x + y + 8y = 0

Combine like terms: y + 8y = 9y
-5x + 9y = 0

Solving
-5x + 9y = 0

Solving for variable 'x'.

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

Add '-9y' to each side of the equation.
-5x + 9y + -9y = 0 + -9y

Combine like terms: 9y + -9y = 0
-5x + 0 = 0 + -9y
-5x = 0 + -9y
Remove the zero:
-5x = -9y

Divide each side by '-5'.
x = 1.8y

Simplifying
x = 1.8y

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