Solve for x
x=5
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18-3x-2\left(x-4\right)=1
Use the distributive property to multiply 3 by 6-x.
18-3x-2x+8=1
Use the distributive property to multiply -2 by x-4.
18-5x+8=1
Combine -3x and -2x to get -5x.
26-5x=1
Add 18 and 8 to get 26.
-5x=1-26
Subtract 26 from both sides.
-5x=-25
Subtract 26 from 1 to get -25.
x=\frac{-25}{-5}
Divide both sides by -5.
x=5
Divide -25 by -5 to get 5.
Examples
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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]
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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