(15x-45)+(3x-9)=210

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Solution for (15x-45)+(3x-9)=210 equation:


Simplifying
(15x + -45) + (3x + -9) = 210

Reorder the terms:
(-45 + 15x) + (3x + -9) = 210

Remove parenthesis around (-45 + 15x)
-45 + 15x + (3x + -9) = 210

Reorder the terms:
-45 + 15x + (-9 + 3x) = 210

Remove parenthesis around (-9 + 3x)
-45 + 15x + -9 + 3x = 210

Reorder the terms:
-45 + -9 + 15x + 3x = 210

Combine like terms: -45 + -9 = -54
-54 + 15x + 3x = 210

Combine like terms: 15x + 3x = 18x
-54 + 18x = 210

Solving
-54 + 18x = 210

Solving for variable 'x'.

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

Add '54' to each side of the equation.
-54 + 54 + 18x = 210 + 54

Combine like terms: -54 + 54 = 0
0 + 18x = 210 + 54
18x = 210 + 54

Combine like terms: 210 + 54 = 264
18x = 264

Divide each side by '18'.
x = 14.66666667

Simplifying
x = 14.66666667

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