Solve for x

x=-4

$x=−4$

Graph

Graph Both Sides in 2D

Graph in 2D

Quiz

Linear Equation

5 problems similar to:

24 - ( 3 x + 12 ) = 6 \cdot ( 2 x + 12 )

$24−(3x+12)=6⋅(2x+12)$

Still have questions?

Ask a tutor instantly - for free

Share

Copy

Copied to clipboard

24-3x-12=6\left(2x+12\right)

To find the opposite of 3x+12, find the opposite of each term.

12-3x=6\left(2x+12\right)

Subtract 12 from 24 to get 12.

12-3x=12x+72

Use the distributive property to multiply 6 by 2x+12.

12-3x-12x=72

Subtract 12x from both sides.

12-15x=72

Combine -3x and -12x to get -15x.

-15x=72-12

Subtract 12 from both sides.

-15x=60

Subtract 12 from 72 to get 60.

x=\frac{60}{-15}

Divide both sides by -15.

x=-4

Divide 60 by -15 to get -4.

Examples

Quadratic equation

{ x } ^ { 2 } - 4 x - 5 = 0

$x_{2}−4x−5=0$

Trigonometry

4 \sin \theta \cos \theta = 2 \sin \theta

$4sinθcosθ=2sinθ$

Linear equation

y = 3x + 4

$y=3x+4$

Arithmetic

699 * 533

$699∗533$

Matrix

\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { - 1 } & { 1 } & { 5 } \end{array} \right]

$[25 34 ][2−1 01 35 ]$

Simultaneous equation

\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.

${8x+2y=467x+3y=47 $

Differentiation

\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }

$dxd (x−5)(3x_{2}−2) $

Integration

\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x

$∫_{0}xe_{−x_{2}}dx$

Limits

\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}

$x→−3lim x_{2}+2x−3x_{2}−9 $