7y+14=5y+21

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Solution for 7y+14=5y+21 equation:


Simplifying
7y + 14 = 5y + 21

Reorder the terms:
14 + 7y = 5y + 21

Reorder the terms:
14 + 7y = 21 + 5y

Solving
14 + 7y = 21 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
14 + 7y + -5y = 21 + 5y + -5y

Combine like terms: 7y + -5y = 2y
14 + 2y = 21 + 5y + -5y

Combine like terms: 5y + -5y = 0
14 + 2y = 21 + 0
14 + 2y = 21

Add '-14' to each side of the equation.
14 + -14 + 2y = 21 + -14

Combine like terms: 14 + -14 = 0
0 + 2y = 21 + -14
2y = 21 + -14

Combine like terms: 21 + -14 = 7
2y = 7

Divide each side by '2'.
y = 3.5

Simplifying
y = 3.5

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