10-5(4-2x)=40

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Solution for 10-5(4-2x)=40 equation: 


Simplifying
10 + -5(4 + -2x) = 40
10 + (4 * -5 + -2x * -5) = 40
10 + (-20 + 10x) = 40

Combine like terms: 10 + -20 = -10
-10 + 10x = 40

Solving
-10 + 10x = 40

Solving for variable 'x'.

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

Add '10' to each side of the equation.
-10 + 10 + 10x = 40 + 10

Combine like terms: -10 + 10 = 0
0 + 10x = 40 + 10
10x = 40 + 10

Combine like terms: 40 + 10 = 50
10x = 50

Divide each side by '10'.
x = 5

Simplifying
x = 5

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