3(20-y)+11y=100

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Solution for 3(20-y)+11y=100 equation:


Simplifying
3(20 + -1y) + 11y = 100
(20 * 3 + -1y * 3) + 11y = 100
(60 + -3y) + 11y = 100

Combine like terms: -3y + 11y = 8y
60 + 8y = 100

Solving
60 + 8y = 100

Solving for variable 'y'.

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

Add '-60' to each side of the equation.
60 + -60 + 8y = 100 + -60

Combine like terms: 60 + -60 = 0
0 + 8y = 100 + -60
8y = 100 + -60

Combine like terms: 100 + -60 = 40
8y = 40

Divide each side by '8'.
y = 5

Simplifying
y = 5

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