=3(2y+4)7-30

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Solution for =3(2y+4)7-30 equation: 


Simplifying
0 = 3(2y + 4) * 7 + -30

Reorder the terms:
0 = 3(4 + 2y) * 7 + -30

Reorder the terms for easier multiplication:
0 = 3 * 7(4 + 2y) + -30

Multiply 3 * 7
0 = 21(4 + 2y) + -30
0 = (4 * 21 + 2y * 21) + -30
0 = (84 + 42y) + -30

Reorder the terms:
0 = 84 + -30 + 42y

Combine like terms: 84 + -30 = 54
0 = 54 + 42y

Solving
0 = 54 + 42y

Solving for variable 'y'.

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

Add '-42y' to each side of the equation.
0 + -42y = 54 + 42y + -42y
Remove the zero:
-42y = 54 + 42y + -42y

Combine like terms: 42y + -42y = 0
-42y = 54 + 0
-42y = 54

Divide each side by '-42'.
y = -1.285714286

Simplifying
y = -1.285714286

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