Solve for y
y<12
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y<\frac{84}{7}
Divide both sides by 7. Since 7 is positive, the inequality direction remains the same.
y<12
Divide 84 by 7 to get 12.
Examples
Quadratic equation
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Trigonometry
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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