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Solve the formula A=(1)/(2)h(a+b) for a

Solve the formula A=12h(a+b) A=\frac{1}{2} h(a+b) for a a

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Write variable expressions for arithmetic sequencesright chevron icon

Full solution

Q. Solve the formula A=12h(a+b) A=\frac{1}{2} h(a+b) for a a
  1. Multiply by 22: First, let's isolate the term with aa by multiplying both sides of the equation by 22 to get rid of the fraction.\newline2A=h(a+b)2A = h(a + b)
  2. Divide by h: Now, we divide both sides by hh to isolate (a+b)(a + b).\newline2Ah=a+b\frac{2A}{h} = a + b
  3. Subtract bb: Finally, we subtract bb from both sides to solve for aa.\newlinea=2Ah−ba = \frac{2A}{h} - b

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