Solve for x
x = -\frac{153}{10} = -15\frac{3}{10} = -15.3
Graph
Share
Copied to clipboard
10\left(6+7x\right)-6\left(5x-3\right)=30x-75
Multiply both sides of the equation by 30, the least common multiple of 3,5,2.
60+70x-6\left(5x-3\right)=30x-75
Use the distributive property to multiply 10 by 6+7x.
60+70x-30x+18=30x-75
Use the distributive property to multiply -6 by 5x-3.
60+40x+18=30x-75
Combine 70x and -30x to get 40x.
78+40x=30x-75
Add 60 and 18 to get 78.
78+40x-30x=-75
Subtract 30x from both sides.
78+10x=-75
Combine 40x and -30x to get 10x.
10x=-75-78
Subtract 78 from both sides.
10x=-153
Subtract 78 from -75 to get -153.
x=\frac{-153}{10}
Divide both sides by 10.
x=-\frac{153}{10}
Fraction \frac{-153}{10} can be rewritten as -\frac{153}{10} by extracting the negative sign.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}