7(2y-9)-(7y+7)=

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


Simplifying
7(2y + -9) + -1(7y + 7) = 0

Reorder the terms:
7(-9 + 2y) + -1(7y + 7) = 0
(-9 * 7 + 2y * 7) + -1(7y + 7) = 0
(-63 + 14y) + -1(7y + 7) = 0

Reorder the terms:
-63 + 14y + -1(7 + 7y) = 0
-63 + 14y + (7 * -1 + 7y * -1) = 0
-63 + 14y + (-7 + -7y) = 0

Reorder the terms:
-63 + -7 + 14y + -7y = 0

Combine like terms: -63 + -7 = -70
-70 + 14y + -7y = 0

Combine like terms: 14y + -7y = 7y
-70 + 7y = 0

Solving
-70 + 7y = 0

Solving for variable 'y'.

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

Add '70' to each side of the equation.
-70 + 70 + 7y = 0 + 70

Combine like terms: -70 + 70 = 0
0 + 7y = 0 + 70
7y = 0 + 70

Combine like terms: 0 + 70 = 70
7y = 70

Divide each side by '7'.
y = 10

Simplifying
y = 10

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