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18=3\times 5+3
Multiply both sides of the equation by 5.
18=15+3
Multiply 3 and 5 to get 15.
18=18
Add 15 and 3 to get 18.
\text{true}
Compare 18 and 18.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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