Solve for n
n\leq 49
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7\times 7\geq n
Multiply both sides by 7. Since 7 is positive, the inequality direction remains the same.
49\geq n
Multiply 7 and 7 to get 49.
n\leq 49
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
Examples
Quadratic equation
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Matrix
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