4[x+20]=20x+40

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Solution for 4[x+20]=20x+40 equation:


Simplifying
4[x + 20] = 20x + 40

Reorder the terms:
4[20 + x] = 20x + 40
[20 * 4 + x * 4] = 20x + 40
[80 + 4x] = 20x + 40

Reorder the terms:
80 + 4x = 40 + 20x

Solving
80 + 4x = 40 + 20x

Solving for variable 'x'.

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

Add '-20x' to each side of the equation.
80 + 4x + -20x = 40 + 20x + -20x

Combine like terms: 4x + -20x = -16x
80 + -16x = 40 + 20x + -20x

Combine like terms: 20x + -20x = 0
80 + -16x = 40 + 0
80 + -16x = 40

Add '-80' to each side of the equation.
80 + -80 + -16x = 40 + -80

Combine like terms: 80 + -80 = 0
0 + -16x = 40 + -80
-16x = 40 + -80

Combine like terms: 40 + -80 = -40
-16x = -40

Divide each side by '-16'.
x = 2.5

Simplifying
x = 2.5

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