Algebra Examples

2 x - 7 = - 1

$2 x - 7 = - 1$

Step 1

Move all terms not containing

x

$x$ to the right side of the equation.

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Step 1.1

Add

7

$7$ to both sides of the equation.

2 x = - 1 + 7

$2 x = - 1 + 7$

Step 1.2

Add

- 1

$- 1$ and

7

$7$ .

2 x = 6

$2 x = 6$

2 x = 6

$2 x = 6$

Step 2

Divide each term in

2 x = 6

$2 x = 6$ by

2

$2$ and simplify.

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Step 2.1

Divide each term in

2 x = 6

$2 x = 6$ by

2

$2$ .

\frac{2 x}{2} = \frac{6}{2}

$\frac{2 x}{2} = \frac{6}{2}$

Step 2.2

Simplify the left side.

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Step 2.2.1

Cancel the common factor of

2

$2$ .

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Step 2.2.1.1

Cancel the common factor.

$\frac{2 x}{2} = \frac{6}{2}$

Step 2.2.1.2

Divide

$x$ by

$1$ .

$x = \frac{6}{2}$

$x = \frac{6}{2}$

$x = \frac{6}{2}$

Step 2.3

Simplify the right side.

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Step 2.3.1

Divide

$6$ by

$2$ .

$x = 3$

$x = 3$

$x = 3$

$2 x - 7 = - 1$

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$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$