Solve for x
x=10
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3\times \frac{0.2x-3}{0.1}-6=x+2-3\times \frac{0.8x}{0.5}
Multiply both sides of the equation by 3.
3\times \frac{0.2x-3}{0.1}-6=x+2-3\times 1.6x
Divide 0.8x by 0.5 to get 1.6x.
3\times \frac{0.2x-3}{0.1}-6=x+2-4.8x
Multiply -3 and 1.6 to get -4.8.
3\times \frac{0.2x-3}{0.1}-6=-3.8x+2
Combine x and -4.8x to get -3.8x.
3\left(\frac{0.2x}{0.1}+\frac{-3}{0.1}\right)-6=-3.8x+2
Divide each term of 0.2x-3 by 0.1 to get \frac{0.2x}{0.1}+\frac{-3}{0.1}.
3\left(2x+\frac{-3}{0.1}\right)-6=-3.8x+2
Divide 0.2x by 0.1 to get 2x.
3\left(2x-30\right)-6=-3.8x+2
Expand \frac{-3}{0.1} by multiplying both numerator and the denominator by 10. Anything divided by one gives itself.
6x-90-6=-3.8x+2
Use the distributive property to multiply 3 by 2x-30.
6x-96=-3.8x+2
Subtract 6 from -90 to get -96.
6x-96+3.8x=2
Add 3.8x to both sides.
9.8x-96=2
Combine 6x and 3.8x to get 9.8x.
9.8x=2+96
Add 96 to both sides.
9.8x=98
Add 2 and 96 to get 98.
x=\frac{98}{9.8}
Divide both sides by 9.8.
x=\frac{980}{98}
Expand \frac{98}{9.8} by multiplying both numerator and the denominator by 10.
x=10
Divide 980 by 98 to get 10.
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y = 3x + 4
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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