180=90+(4y-7)+(4y-7)

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Solution for 180=90+(4y-7)+(4y-7) equation:


Simplifying
180 = 90 + (4y + -7) + (4y + -7)

Reorder the terms:
180 = 90 + (-7 + 4y) + (4y + -7)

Remove parenthesis around (-7 + 4y)
180 = 90 + -7 + 4y + (4y + -7)

Reorder the terms:
180 = 90 + -7 + 4y + (-7 + 4y)

Remove parenthesis around (-7 + 4y)
180 = 90 + -7 + 4y + -7 + 4y

Reorder the terms:
180 = 90 + -7 + -7 + 4y + 4y

Combine like terms: 90 + -7 = 83
180 = 83 + -7 + 4y + 4y

Combine like terms: 83 + -7 = 76
180 = 76 + 4y + 4y

Combine like terms: 4y + 4y = 8y
180 = 76 + 8y

Solving
180 = 76 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
180 + -8y = 76 + 8y + -8y

Combine like terms: 8y + -8y = 0
180 + -8y = 76 + 0
180 + -8y = 76

Add '-180' to each side of the equation.
180 + -180 + -8y = 76 + -180

Combine like terms: 180 + -180 = 0
0 + -8y = 76 + -180
-8y = 76 + -180

Combine like terms: 76 + -180 = -104
-8y = -104

Divide each side by '-8'.
y = 13

Simplifying
y = 13

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