Solve for x
x\geq 42
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2x-35\geq 49
Multiply both sides of the equation by 7. Since 7 is positive, the inequality direction remains the same.
2x\geq 49+35
Add 35 to both sides.
2x\geq 84
Add 49 and 35 to get 84.
x\geq \frac{84}{2}
Divide both sides by 2. Since 2 is positive, the inequality direction remains the same.
x\geq 42
Divide 84 by 2 to get 42.
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
Arithmetic
699 * 533
Matrix
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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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