Solve for x
x=0
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36-x=4\times 9-4x
Multiply 4 and 9 to get 36.
36-x=36-4x
Multiply 4 and 9 to get 36.
36-x+4x=36
Add 4x to both sides.
36+3x=36
Combine -x and 4x to get 3x.
3x=36-36
Subtract 36 from both sides.
3x=0
Subtract 36 from 36 to get 0.
x=0
Product of two numbers is equal to 0 if at least one of them is 0. Since 3 is not equal to 0, x must be equal to 0.
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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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