9-18=7x+3

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Solution for 9-18=7x+3 equation:


Simplifying
9 + -18 = 7x + 3

Combine like terms: 9 + -18 = -9
-9 = 7x + 3

Reorder the terms:
-9 = 3 + 7x

Solving
-9 = 3 + 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.
-9 + -7x = 3 + 7x + -7x

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

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

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

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

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

Simplifying
x = -1.714285714

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