25(78-y)+10y=142.5

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Solution for 25(78-y)+10y=142.5 equation:


Simplifying
25(78 + -1y) + 10y = 142.5
(78 * 25 + -1y * 25) + 10y = 142.5
(1950 + -25y) + 10y = 142.5

Combine like terms: -25y + 10y = -15y
1950 + -15y = 142.5

Solving
1950 + -15y = 142.5

Solving for variable 'y'.

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

Add '-1950' to each side of the equation.
1950 + -1950 + -15y = 142.5 + -1950

Combine like terms: 1950 + -1950 = 0
0 + -15y = 142.5 + -1950
-15y = 142.5 + -1950

Combine like terms: 142.5 + -1950 = -1807.5
-15y = -1807.5

Divide each side by '-15'.
y = 120.5

Simplifying
y = 120.5

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