Solve for x
x<\frac{5}{3}
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7x-3+2x<12
Add 2x to both sides.
9x-3<12
Combine 7x and 2x to get 9x.
9x<12+3
Add 3 to both sides.
9x<15
Add 12 and 3 to get 15.
x<\frac{15}{9}
Divide both sides by 9. Since 9 is positive, the inequality direction remains the same.
x<\frac{5}{3}
Reduce the fraction \frac{15}{9} to lowest terms by extracting and canceling out 3.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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
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Limits
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