9-4(2x-10)=45

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Solution for 9-4(2x-10)=45 equation: 


Simplifying
9 + -4(2x + -10) = 45

Reorder the terms:
9 + -4(-10 + 2x) = 45
9 + (-10 * -4 + 2x * -4) = 45
9 + (40 + -8x) = 45

Combine like terms: 9 + 40 = 49
49 + -8x = 45

Solving
49 + -8x = 45

Solving for variable 'x'.

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

Add '-49' to each side of the equation.
49 + -49 + -8x = 45 + -49

Combine like terms: 49 + -49 = 0
0 + -8x = 45 + -49
-8x = 45 + -49

Combine like terms: 45 + -49 = -4
-8x = -4

Divide each side by '-8'.
x = 0.5

Simplifying
x = 0.5

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