7(20-3y)-8y=5

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Solution for 7(20-3y)-8y=5 equation:


Simplifying
7(20 + -3y) + -8y = 5
(20 * 7 + -3y * 7) + -8y = 5
(140 + -21y) + -8y = 5

Combine like terms: -21y + -8y = -29y
140 + -29y = 5

Solving
140 + -29y = 5

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 + -29y = 5 + -140

Combine like terms: 140 + -140 = 0
0 + -29y = 5 + -140
-29y = 5 + -140

Combine like terms: 5 + -140 = -135
-29y = -135

Divide each side by '-29'.
y = 4.655172414

Simplifying
y = 4.655172414

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