3x+9+4x+4=8x+5

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Solution for 3x+9+4x+4=8x+5 equation:


Simplifying
3x + 9 + 4x + 4 = 8x + 5

Reorder the terms:
9 + 4 + 3x + 4x = 8x + 5

Combine like terms: 9 + 4 = 13
13 + 3x + 4x = 8x + 5

Combine like terms: 3x + 4x = 7x
13 + 7x = 8x + 5

Reorder the terms:
13 + 7x = 5 + 8x

Solving
13 + 7x = 5 + 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.
13 + 7x + -8x = 5 + 8x + -8x

Combine like terms: 7x + -8x = -1x
13 + -1x = 5 + 8x + -8x

Combine like terms: 8x + -8x = 0
13 + -1x = 5 + 0
13 + -1x = 5

Add '-13' to each side of the equation.
13 + -13 + -1x = 5 + -13

Combine like terms: 13 + -13 = 0
0 + -1x = 5 + -13
-1x = 5 + -13

Combine like terms: 5 + -13 = -8
-1x = -8

Divide each side by '-1'.
x = 8

Simplifying
x = 8

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