45+y=2(10+y)

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Solution for 45+y=2(10+y) equation:


Simplifying
45 + y = 2(10 + y)
45 + y = (10 * 2 + y * 2)
45 + y = (20 + 2y)

Solving
45 + y = 20 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
45 + y + -2y = 20 + 2y + -2y

Combine like terms: y + -2y = -1y
45 + -1y = 20 + 2y + -2y

Combine like terms: 2y + -2y = 0
45 + -1y = 20 + 0
45 + -1y = 20

Add '-45' to each side of the equation.
45 + -45 + -1y = 20 + -45

Combine like terms: 45 + -45 = 0
0 + -1y = 20 + -45
-1y = 20 + -45

Combine like terms: 20 + -45 = -25
-1y = -25

Divide each side by '-1'.
y = 25

Simplifying
y = 25

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