Question

5x + 10 (90-x) = 500​

Answer 1

Answer:

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Answer 2

Answer:

5x + 10(90 + -1x) = 500

5x + (90 * 10 + -1x * 10) = 500

5x + (900 + -10x) = 500

Reorder the terms:

900 + 5x + -10x = 500

Combine like terms: 5x + -10x = -5x

900 + -5x = 500

Solving

900 + -5x = 500

Solving for variable 'x'.

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

Add '-900' to each side of the equation.

900 + -900 + -5x = 500 + -900

Combine like terms: 900 + -900 = 0

0 + -5x = 500 + -900

-5x = 500 + -900

Combine like terms: 500 + -900 = -400

-5x = -400

Divide each side by '-5'.

x = 80

Simplifying

x = 80

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