Solve for x
x=2
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3=3\left(x-1\right)
Subtract 1 from 4 to get 3.
3=3x-3
Use the distributive property to multiply 3 by x-1.
3x-3=3
Swap sides so that all variable terms are on the left hand side.
3x=3+3
Add 3 to both sides.
3x=6
Add 3 and 3 to get 6.
x=\frac{6}{3}
Divide both sides by 3.
x=2
Divide 6 by 3 to get 2.
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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