Solve for x
x\geq 3
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7x-3\geq 18
Swap sides so that all variable terms are on the left hand side. This changes the sign direction.
7x\geq 18+3
Add 3 to both sides.
7x\geq 21
Add 18 and 3 to get 21.
x\geq \frac{21}{7}
Divide both sides by 7. Since 7 is positive, the inequality direction remains the same.
x\geq 3
Divide 21 by 7 to get 3.
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Limits
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