-84=2(5y-7)

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Solution for -84=2(5y-7) equation:


Simplifying
-84 = 2(5y + -7)

Reorder the terms:
-84 = 2(-7 + 5y)
-84 = (-7 * 2 + 5y * 2)
-84 = (-14 + 10y)

Solving
-84 = -14 + 10y

Solving for variable 'y'.

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

Add '-10y' to each side of the equation.
-84 + -10y = -14 + 10y + -10y

Combine like terms: 10y + -10y = 0
-84 + -10y = -14 + 0
-84 + -10y = -14

Add '84' to each side of the equation.
-84 + 84 + -10y = -14 + 84

Combine like terms: -84 + 84 = 0
0 + -10y = -14 + 84
-10y = -14 + 84

Combine like terms: -14 + 84 = 70
-10y = 70

Divide each side by '-10'.
y = -7

Simplifying
y = -7

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