7x+8y-4(5x-9y)=

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Solution for 7x+8y-4(5x-9y)= equation:


Simplifying
7x + 8y + -4(5x + -9y) = 0
7x + 8y + (5x * -4 + -9y * -4) = 0
7x + 8y + (-20x + 36y) = 0

Reorder the terms:
7x + -20x + 8y + 36y = 0

Combine like terms: 7x + -20x = -13x
-13x + 8y + 36y = 0

Combine like terms: 8y + 36y = 44y
-13x + 44y = 0

Solving
-13x + 44y = 0

Solving for variable 'x'.

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

Add '-44y' to each side of the equation.
-13x + 44y + -44y = 0 + -44y

Combine like terms: 44y + -44y = 0
-13x + 0 = 0 + -44y
-13x = 0 + -44y
Remove the zero:
-13x = -44y

Divide each side by '-13'.
x = 3.384615385y

Simplifying
x = 3.384615385y

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