7x+(1+2x)-3=7

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Solution for 7x+(1+2x)-3=7 equation:


Simplifying
7x + (1 + 2x) + -3 = 7

Remove parenthesis around (1 + 2x)
7x + 1 + 2x + -3 = 7

Reorder the terms:
1 + -3 + 7x + 2x = 7

Combine like terms: 1 + -3 = -2
-2 + 7x + 2x = 7

Combine like terms: 7x + 2x = 9x
-2 + 9x = 7

Solving
-2 + 9x = 7

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 9x = 7 + 2

Combine like terms: -2 + 2 = 0
0 + 9x = 7 + 2
9x = 7 + 2

Combine like terms: 7 + 2 = 9
9x = 9

Divide each side by '9'.
x = 1

Simplifying
x = 1

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