7(3y+1)=2(5y+9)

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Solution for 7(3y+1)=2(5y+9) equation:


Simplifying
7(3y + 1) = 2(5y + 9)

Reorder the terms:
7(1 + 3y) = 2(5y + 9)
(1 * 7 + 3y * 7) = 2(5y + 9)
(7 + 21y) = 2(5y + 9)

Reorder the terms:
7 + 21y = 2(9 + 5y)
7 + 21y = (9 * 2 + 5y * 2)
7 + 21y = (18 + 10y)

Solving
7 + 21y = 18 + 10y

Solving for variable 'y'.

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

Add '-10y' to each side of the equation.
7 + 21y + -10y = 18 + 10y + -10y

Combine like terms: 21y + -10y = 11y
7 + 11y = 18 + 10y + -10y

Combine like terms: 10y + -10y = 0
7 + 11y = 18 + 0
7 + 11y = 18

Add '-7' to each side of the equation.
7 + -7 + 11y = 18 + -7

Combine like terms: 7 + -7 = 0
0 + 11y = 18 + -7
11y = 18 + -7

Combine like terms: 18 + -7 = 11
11y = 11

Divide each side by '11'.
y = 1

Simplifying
y = 1

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