Solve for b
b\leq 10
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5b-45+5b\leq 55
Add 5b to both sides.
10b-45\leq 55
Combine 5b and 5b to get 10b.
10b\leq 55+45
Add 45 to both sides.
10b\leq 100
Add 55 and 45 to get 100.
b\leq \frac{100}{10}
Divide both sides by 10. Since 10 is positive, the inequality direction remains the same.
b\leq 10
Divide 100 by 10 to get 10.
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