-3=3(x+3)+4x

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Solution for -3=3(x+3)+4x equation:


Simplifying
-3 = 3(x + 3) + 4x

Reorder the terms:
-3 = 3(3 + x) + 4x
-3 = (3 * 3 + x * 3) + 4x
-3 = (9 + 3x) + 4x

Combine like terms: 3x + 4x = 7x
-3 = 9 + 7x

Solving
-3 = 9 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-3 + -7x = 9 + 7x + -7x

Combine like terms: 7x + -7x = 0
-3 + -7x = 9 + 0
-3 + -7x = 9

Add '3' to each side of the equation.
-3 + 3 + -7x = 9 + 3

Combine like terms: -3 + 3 = 0
0 + -7x = 9 + 3
-7x = 9 + 3

Combine like terms: 9 + 3 = 12
-7x = 12

Divide each side by '-7'.
x = -1.714285714

Simplifying
x = -1.714285714

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