7X+9=3X-1

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Solution for 7X+9=3X-1 equation:


Simplifying
7X + 9 = 3X + -1

Reorder the terms:
9 + 7X = 3X + -1

Reorder the terms:
9 + 7X = -1 + 3X

Solving
9 + 7X = -1 + 3X

Solving for variable 'X'.

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

Add '-3X' to each side of the equation.
9 + 7X + -3X = -1 + 3X + -3X

Combine like terms: 7X + -3X = 4X
9 + 4X = -1 + 3X + -3X

Combine like terms: 3X + -3X = 0
9 + 4X = -1 + 0
9 + 4X = -1

Add '-9' to each side of the equation.
9 + -9 + 4X = -1 + -9

Combine like terms: 9 + -9 = 0
0 + 4X = -1 + -9
4X = -1 + -9

Combine like terms: -1 + -9 = -10
4X = -10

Divide each side by '4'.
X = -2.5

Simplifying
X = -2.5

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