3(4y-7)-8y=4y-21

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Solution for 3(4y-7)-8y=4y-21 equation:


Simplifying
3(4y + -7) + -8y = 4y + -21

Reorder the terms:
3(-7 + 4y) + -8y = 4y + -21
(-7 * 3 + 4y * 3) + -8y = 4y + -21
(-21 + 12y) + -8y = 4y + -21

Combine like terms: 12y + -8y = 4y
-21 + 4y = 4y + -21

Reorder the terms:
-21 + 4y = -21 + 4y

Add '21' to each side of the equation.
-21 + 21 + 4y = -21 + 21 + 4y

Combine like terms: -21 + 21 = 0
0 + 4y = -21 + 21 + 4y
4y = -21 + 21 + 4y

Combine like terms: -21 + 21 = 0
4y = 0 + 4y
4y = 4y

Add '-4y' to each side of the equation.
4y + -4y = 4y + -4y

Combine like terms: 4y + -4y = 0
0 = 4y + -4y

Combine like terms: 4y + -4y = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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