3x-(4x+9)=5x-45

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Solution for 3x-(4x+9)=5x-45 equation:


Simplifying
3x + -1(4x + 9) = 5x + -45

Reorder the terms:
3x + -1(9 + 4x) = 5x + -45
3x + (9 * -1 + 4x * -1) = 5x + -45
3x + (-9 + -4x) = 5x + -45

Reorder the terms:
-9 + 3x + -4x = 5x + -45

Combine like terms: 3x + -4x = -1x
-9 + -1x = 5x + -45

Reorder the terms:
-9 + -1x = -45 + 5x

Solving
-9 + -1x = -45 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-9 + -1x + -5x = -45 + 5x + -5x

Combine like terms: -1x + -5x = -6x
-9 + -6x = -45 + 5x + -5x

Combine like terms: 5x + -5x = 0
-9 + -6x = -45 + 0
-9 + -6x = -45

Add '9' to each side of the equation.
-9 + 9 + -6x = -45 + 9

Combine like terms: -9 + 9 = 0
0 + -6x = -45 + 9
-6x = -45 + 9

Combine like terms: -45 + 9 = -36
-6x = -36

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

Simplifying
x = 6

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