7(7-x)+4x=20

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Solution for 7(7-x)+4x=20 equation:


Simplifying
7(7 + -1x) + 4x = 20
(7 * 7 + -1x * 7) + 4x = 20
(49 + -7x) + 4x = 20

Combine like terms: -7x + 4x = -3x
49 + -3x = 20

Solving
49 + -3x = 20

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 + -3x = 20 + -49

Combine like terms: 49 + -49 = 0
0 + -3x = 20 + -49
-3x = 20 + -49

Combine like terms: 20 + -49 = -29
-3x = -29

Divide each side by '-3'.
x = 9.666666667

Simplifying
x = 9.666666667

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