3(y-3)+4y=7

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Solution for 3(y-3)+4y=7 equation:


Simplifying
3(y + -3) + 4y = 7

Reorder the terms:
3(-3 + y) + 4y = 7
(-3 * 3 + y * 3) + 4y = 7
(-9 + 3y) + 4y = 7

Combine like terms: 3y + 4y = 7y
-9 + 7y = 7

Solving
-9 + 7y = 7

Solving for variable 'y'.

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

Add '9' to each side of the equation.
-9 + 9 + 7y = 7 + 9

Combine like terms: -9 + 9 = 0
0 + 7y = 7 + 9
7y = 7 + 9

Combine like terms: 7 + 9 = 16
7y = 16

Divide each side by '7'.
y = 2.285714286

Simplifying
y = 2.285714286

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