4y-7(y+20)=85

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Solution for 4y-7(y+20)=85 equation:


Simplifying
4y + -7(y + 20) = 85

Reorder the terms:
4y + -7(20 + y) = 85
4y + (20 * -7 + y * -7) = 85
4y + (-140 + -7y) = 85

Reorder the terms:
-140 + 4y + -7y = 85

Combine like terms: 4y + -7y = -3y
-140 + -3y = 85

Solving
-140 + -3y = 85

Solving for variable 'y'.

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

Add '140' to each side of the equation.
-140 + 140 + -3y = 85 + 140

Combine like terms: -140 + 140 = 0
0 + -3y = 85 + 140
-3y = 85 + 140

Combine like terms: 85 + 140 = 225
-3y = 225

Divide each side by '-3'.
y = -75

Simplifying
y = -75

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