3(5x-7)=8x

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Solution for 3(5x-7)=8x equation:


Simplifying
3(5x + -7) = 8x

Reorder the terms:
3(-7 + 5x) = 8x
(-7 * 3 + 5x * 3) = 8x
(-21 + 15x) = 8x

Solving
-21 + 15x = 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-21 + 15x + -8x = 8x + -8x

Combine like terms: 15x + -8x = 7x
-21 + 7x = 8x + -8x

Combine like terms: 8x + -8x = 0
-21 + 7x = 0

Add '21' to each side of the equation.
-21 + 21 + 7x = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 7x = 0 + 21
7x = 0 + 21

Combine like terms: 0 + 21 = 21
7x = 21

Divide each side by '7'.
x = 3

Simplifying
x = 3

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