Solve for B
B = \frac{600}{7} = 85\frac{5}{7} \approx 85.714285714
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3\left(700+2B\right)+B=1350\times 2
Multiply both sides by 2.
2100+6B+B=1350\times 2
Use the distributive property to multiply 3 by 700+2B.
2100+7B=1350\times 2
Combine 6B and B to get 7B.
2100+7B=2700
Multiply 1350 and 2 to get 2700.
7B=2700-2100
Subtract 2100 from both sides.
7B=600
Subtract 2100 from 2700 to get 600.
B=\frac{600}{7}
Divide both sides by 7.
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