Solve for x
x>-1
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1.8x+2-0.5x>0.7
Subtract 0.5x from both sides.
1.3x+2>0.7
Combine 1.8x and -0.5x to get 1.3x.
1.3x>0.7-2
Subtract 2 from both sides.
1.3x>-1.3
Subtract 2 from 0.7 to get -1.3.
x>\frac{-1.3}{1.3}
Divide both sides by 1.3. Since 1.3 is positive, the inequality direction remains the same.
x>-1
Divide -1.3 by 1.3 to get -1.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
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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
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