3(63y+42)=84+7(21+42)

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Solution for 3(63y+42)=84+7(21+42) equation: 


Simplifying
3(63y + 42) = 84 + 7(21 + 42)

Reorder the terms:
3(42 + 63y) = 84 + 7(21 + 42)
(42 * 3 + 63y * 3) = 84 + 7(21 + 42)
(126 + 189y) = 84 + 7(21 + 42)

Combine like terms: 21 + 42 = 63
126 + 189y = 84 + 7(63)

Multiply 7 * 63
126 + 189y = 84 + 441

Combine like terms: 84 + 441 = 525
126 + 189y = 525

Solving
126 + 189y = 525

Solving for variable 'y'.

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

Add '-126' to each side of the equation.
126 + -126 + 189y = 525 + -126

Combine like terms: 126 + -126 = 0
0 + 189y = 525 + -126
189y = 525 + -126

Combine like terms: 525 + -126 = 399
189y = 399

Divide each side by '189'.
y = 2.111111111

Simplifying
y = 2.111111111

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