Solve for x
x=9
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5\times 21+x\times 3=5.5\times 24
Multiply both sides by 24.
105+x\times 3=5.5\times 24
Multiply 5 and 21 to get 105.
105+x\times 3=132
Multiply 5.5 and 24 to get 132.
x\times 3=132-105
Subtract 105 from both sides.
x\times 3=27
Subtract 105 from 132 to get 27.
x=\frac{27}{3}
Divide both sides by 3.
x=9
Divide 27 by 3 to get 9.
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