3x+4x+5=19

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Solution for 3x+4x+5=19 equation: 


Simplifying
3x + 4x + 5 = 19

Reorder the terms:
5 + 3x + 4x = 19

Combine like terms: 3x + 4x = 7x
5 + 7x = 19

Solving
5 + 7x = 19

Solving for variable 'x'.

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

Add '-5' to each side of the equation.
5 + -5 + 7x = 19 + -5

Combine like terms: 5 + -5 = 0
0 + 7x = 19 + -5
7x = 19 + -5

Combine like terms: 19 + -5 = 14
7x = 14

Divide each side by '7'.
x = 2

Simplifying
x = 2

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