4x+9+3=30

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Solution for 4x+9+3=30 equation:


Simplifying
4x + 9 + 3 = 30

Reorder the terms:
9 + 3 + 4x = 30

Combine like terms: 9 + 3 = 12
12 + 4x = 30

Solving
12 + 4x = 30

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 4x = 30 + -12

Combine like terms: 12 + -12 = 0
0 + 4x = 30 + -12
4x = 30 + -12

Combine like terms: 30 + -12 = 18
4x = 18

Divide each side by '4'.
x = 4.5

Simplifying
x = 4.5

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