7=20-4x

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Solution for 7=20-4x equation:


Simplifying
7 = 20 + -4x

Solving
7 = 20 + -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
7 + 4x = 20 + -4x + 4x

Combine like terms: -4x + 4x = 0
7 + 4x = 20 + 0
7 + 4x = 20

Add '-7' to each side of the equation.
7 + -7 + 4x = 20 + -7

Combine like terms: 7 + -7 = 0
0 + 4x = 20 + -7
4x = 20 + -7

Combine like terms: 20 + -7 = 13
4x = 13

Divide each side by '4'.
x = 3.25

Simplifying
x = 3.25

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