3y+4(y+2)=78

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Solution for 3y+4(y+2)=78 equation:


Simplifying
3y + 4(y + 2) = 78

Reorder the terms:
3y + 4(2 + y) = 78
3y + (2 * 4 + y * 4) = 78
3y + (8 + 4y) = 78

Reorder the terms:
8 + 3y + 4y = 78

Combine like terms: 3y + 4y = 7y
8 + 7y = 78

Solving
8 + 7y = 78

Solving for variable 'y'.

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

Add '-8' to each side of the equation.
8 + -8 + 7y = 78 + -8

Combine like terms: 8 + -8 = 0
0 + 7y = 78 + -8
7y = 78 + -8

Combine like terms: 78 + -8 = 70
7y = 70

Divide each side by '7'.
y = 10

Simplifying
y = 10

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