2(3y+7)-3(y-5)=21+4(1+2y)

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Solution for 2(3y+7)-3(y-5)=21+4(1+2y) equation:


Simplifying
2(3y + 7) + -3(y + -5) = 21 + 4(1 + 2y)

Reorder the terms:
2(7 + 3y) + -3(y + -5) = 21 + 4(1 + 2y)
(7 * 2 + 3y * 2) + -3(y + -5) = 21 + 4(1 + 2y)
(14 + 6y) + -3(y + -5) = 21 + 4(1 + 2y)

Reorder the terms:
14 + 6y + -3(-5 + y) = 21 + 4(1 + 2y)
14 + 6y + (-5 * -3 + y * -3) = 21 + 4(1 + 2y)
14 + 6y + (15 + -3y) = 21 + 4(1 + 2y)

Reorder the terms:
14 + 15 + 6y + -3y = 21 + 4(1 + 2y)

Combine like terms: 14 + 15 = 29
29 + 6y + -3y = 21 + 4(1 + 2y)

Combine like terms: 6y + -3y = 3y
29 + 3y = 21 + 4(1 + 2y)
29 + 3y = 21 + (1 * 4 + 2y * 4)
29 + 3y = 21 + (4 + 8y)

Combine like terms: 21 + 4 = 25
29 + 3y = 25 + 8y

Solving
29 + 3y = 25 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
29 + 3y + -8y = 25 + 8y + -8y

Combine like terms: 3y + -8y = -5y
29 + -5y = 25 + 8y + -8y

Combine like terms: 8y + -8y = 0
29 + -5y = 25 + 0
29 + -5y = 25

Add '-29' to each side of the equation.
29 + -29 + -5y = 25 + -29

Combine like terms: 29 + -29 = 0
0 + -5y = 25 + -29
-5y = 25 + -29

Combine like terms: 25 + -29 = -4
-5y = -4

Divide each side by '-5'.
y = 0.8

Simplifying
y = 0.8

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