4x+7=21-3

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Solution for 4x+7=21-3 equation:


Simplifying
4x + 7 = 21 + -3

Reorder the terms:
7 + 4x = 21 + -3

Combine like terms: 21 + -3 = 18
7 + 4x = 18

Solving
7 + 4x = 18

Solving for variable 'x'.

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

Add '-7' to each side of the equation.
7 + -7 + 4x = 18 + -7

Combine like terms: 7 + -7 = 0
0 + 4x = 18 + -7
4x = 18 + -7

Combine like terms: 18 + -7 = 11
4x = 11

Divide each side by '4'.
x = 2.75

Simplifying
x = 2.75

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