4(2+1)=5x+3x+9

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Solution for 4(2+1)=5x+3x+9 equation:


Simplifying
4(2 + 1) = 5x + 3x + 9

Combine like terms: 2 + 1 = 3
4(3) = 5x + 3x + 9

Multiply 4 * 3
12 = 5x + 3x + 9

Reorder the terms:
12 = 9 + 5x + 3x

Combine like terms: 5x + 3x = 8x
12 = 9 + 8x

Solving
12 = 9 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
12 + -8x = 9 + 8x + -8x

Combine like terms: 8x + -8x = 0
12 + -8x = 9 + 0
12 + -8x = 9

Add '-12' to each side of the equation.
12 + -12 + -8x = 9 + -12

Combine like terms: 12 + -12 = 0
0 + -8x = 9 + -12
-8x = 9 + -12

Combine like terms: 9 + -12 = -3
-8x = -3

Divide each side by '-8'.
x = 0.375

Simplifying
x = 0.375

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