-542y+21(2y-7)=23(5y-8)+21

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Solution for -542y+21(2y-7)=23(5y-8)+21 equation:


Simplifying
-542y + 21(2y + -7) = 23(5y + -8) + 21

Reorder the terms:
-542y + 21(-7 + 2y) = 23(5y + -8) + 21
-542y + (-7 * 21 + 2y * 21) = 23(5y + -8) + 21
-542y + (-147 + 42y) = 23(5y + -8) + 21

Reorder the terms:
-147 + -542y + 42y = 23(5y + -8) + 21

Combine like terms: -542y + 42y = -500y
-147 + -500y = 23(5y + -8) + 21

Reorder the terms:
-147 + -500y = 23(-8 + 5y) + 21
-147 + -500y = (-8 * 23 + 5y * 23) + 21
-147 + -500y = (-184 + 115y) + 21

Reorder the terms:
-147 + -500y = -184 + 21 + 115y

Combine like terms: -184 + 21 = -163
-147 + -500y = -163 + 115y

Solving
-147 + -500y = -163 + 115y

Solving for variable 'y'.

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

Add '-115y' to each side of the equation.
-147 + -500y + -115y = -163 + 115y + -115y

Combine like terms: -500y + -115y = -615y
-147 + -615y = -163 + 115y + -115y

Combine like terms: 115y + -115y = 0
-147 + -615y = -163 + 0
-147 + -615y = -163

Add '147' to each side of the equation.
-147 + 147 + -615y = -163 + 147

Combine like terms: -147 + 147 = 0
0 + -615y = -163 + 147
-615y = -163 + 147

Combine like terms: -163 + 147 = -16
-615y = -16

Divide each side by '-615'.
y = 0.02601626016

Simplifying
y = 0.02601626016

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