Q. Solve for u in terms of r, s, and t.t=21u(s+r)u=______
Identify Operation: Identify the operation to isolate u. Since u is multiplied by (s+r) and then by 21, we need to use division and multiplication to isolate u.t=21u(s+r)Multiply both sides by 2 to remove the fraction.2t=u(s+r)
Multiply by 2: Now, divide both sides by (s+r) to solve for u.u=(s+r)2t
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