3(x-5)=9(x-7)

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Solution for 3(x-5)=9(x-7) equation:


Simplifying
3(x + -5) = 9(x + -7)

Reorder the terms:
3(-5 + x) = 9(x + -7)
(-5 * 3 + x * 3) = 9(x + -7)
(-15 + 3x) = 9(x + -7)

Reorder the terms:
-15 + 3x = 9(-7 + x)
-15 + 3x = (-7 * 9 + x * 9)
-15 + 3x = (-63 + 9x)

Solving
-15 + 3x = -63 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-15 + 3x + -9x = -63 + 9x + -9x

Combine like terms: 3x + -9x = -6x
-15 + -6x = -63 + 9x + -9x

Combine like terms: 9x + -9x = 0
-15 + -6x = -63 + 0
-15 + -6x = -63

Add '15' to each side of the equation.
-15 + 15 + -6x = -63 + 15

Combine like terms: -15 + 15 = 0
0 + -6x = -63 + 15
-6x = -63 + 15

Combine like terms: -63 + 15 = -48
-6x = -48

Divide each side by '-6'.
x = 8

Simplifying
x = 8

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