Solve for x
x=5
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4x-42+6x=8
Use the distributive property to multiply -3 by 14-2x.
10x-42=8
Combine 4x and 6x to get 10x.
10x=8+42
Add 42 to both sides.
10x=50
Add 8 and 42 to get 50.
x=\frac{50}{10}
Divide both sides by 10.
x=5
Divide 50 by 10 to get 5.
Examples
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y = 3x + 4
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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
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Limits
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