45=5x+2(2x-9)

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Solution for 45=5x+2(2x-9) equation:


Simplifying
45 = 5x + 2(2x + -9)

Reorder the terms:
45 = 5x + 2(-9 + 2x)
45 = 5x + (-9 * 2 + 2x * 2)
45 = 5x + (-18 + 4x)

Reorder the terms:
45 = -18 + 5x + 4x

Combine like terms: 5x + 4x = 9x
45 = -18 + 9x

Solving
45 = -18 + 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.
45 + -9x = -18 + 9x + -9x

Combine like terms: 9x + -9x = 0
45 + -9x = -18 + 0
45 + -9x = -18

Add '-45' to each side of the equation.
45 + -45 + -9x = -18 + -45

Combine like terms: 45 + -45 = 0
0 + -9x = -18 + -45
-9x = -18 + -45

Combine like terms: -18 + -45 = -63
-9x = -63

Divide each side by '-9'.
x = 7

Simplifying
x = 7

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