(10-y)+(20-y)=24

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Solution for (10-y)+(20-y)=24 equation:


Simplifying
(10 + -1y) + (20 + -1y) = 24

Remove parenthesis around (10 + -1y)
10 + -1y + (20 + -1y) = 24

Remove parenthesis around (20 + -1y)
10 + -1y + 20 + -1y = 24

Reorder the terms:
10 + 20 + -1y + -1y = 24

Combine like terms: 10 + 20 = 30
30 + -1y + -1y = 24

Combine like terms: -1y + -1y = -2y
30 + -2y = 24

Solving
30 + -2y = 24

Solving for variable 'y'.

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

Add '-30' to each side of the equation.
30 + -30 + -2y = 24 + -30

Combine like terms: 30 + -30 = 0
0 + -2y = 24 + -30
-2y = 24 + -30

Combine like terms: 24 + -30 = -6
-2y = -6

Divide each side by '-2'.
y = 3

Simplifying
y = 3

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