4x-1+3x=7+12

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Solution for 4x-1+3x=7+12 equation:


Simplifying
4x + -1 + 3x = 7 + 12

Reorder the terms:
-1 + 4x + 3x = 7 + 12

Combine like terms: 4x + 3x = 7x
-1 + 7x = 7 + 12

Combine like terms: 7 + 12 = 19
-1 + 7x = 19

Solving
-1 + 7x = 19

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + 7x = 19 + 1

Combine like terms: -1 + 1 = 0
0 + 7x = 19 + 1
7x = 19 + 1

Combine like terms: 19 + 1 = 20
7x = 20

Divide each side by '7'.
x = 2.857142857

Simplifying
x = 2.857142857

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