7y+2(5y-6)=9-4y

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Solution for 7y+2(5y-6)=9-4y equation:


Simplifying
7y + 2(5y + -6) = 9 + -4y

Reorder the terms:
7y + 2(-6 + 5y) = 9 + -4y
7y + (-6 * 2 + 5y * 2) = 9 + -4y
7y + (-12 + 10y) = 9 + -4y

Reorder the terms:
-12 + 7y + 10y = 9 + -4y

Combine like terms: 7y + 10y = 17y
-12 + 17y = 9 + -4y

Solving
-12 + 17y = 9 + -4y

Solving for variable 'y'.

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

Add '4y' to each side of the equation.
-12 + 17y + 4y = 9 + -4y + 4y

Combine like terms: 17y + 4y = 21y
-12 + 21y = 9 + -4y + 4y

Combine like terms: -4y + 4y = 0
-12 + 21y = 9 + 0
-12 + 21y = 9

Add '12' to each side of the equation.
-12 + 12 + 21y = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 21y = 9 + 12
21y = 9 + 12

Combine like terms: 9 + 12 = 21
21y = 21

Divide each side by '21'.
y = 1

Simplifying
y = 1

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