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

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


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

Reorder the terms:
-1 = 3(3 + 2x) + 7x
-1 = (3 * 3 + 2x * 3) + 7x
-1 = (9 + 6x) + 7x

Combine like terms: 6x + 7x = 13x
-1 = 9 + 13x

Solving
-1 = 9 + 13x

Solving for variable 'x'.

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

Add '-13x' to each side of the equation.
-1 + -13x = 9 + 13x + -13x

Combine like terms: 13x + -13x = 0
-1 + -13x = 9 + 0
-1 + -13x = 9

Add '1' to each side of the equation.
-1 + 1 + -13x = 9 + 1

Combine like terms: -1 + 1 = 0
0 + -13x = 9 + 1
-13x = 9 + 1

Combine like terms: 9 + 1 = 10
-13x = 10

Divide each side by '-13'.
x = -0.7692307692

Simplifying
x = -0.7692307692

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