Solve for x
x=23
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4x+8=5\left(x-3\right)
Use the distributive property to multiply 4 by x+2.
4x+8=5x-15
Use the distributive property to multiply 5 by x-3.
4x+8-5x=-15
Subtract 5x from both sides.
-x+8=-15
Combine 4x and -5x to get -x.
-x=-15-8
Subtract 8 from both sides.
-x=-23
Subtract 8 from -15 to get -23.
x=23
Multiply both sides by -1.
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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