Given Equation: We are given the equation:−89=v−21We need to solve for v.
Isolate v: To isolate v, we will add (1/2) to both sides of the equation to move the term involving v to one side and the constants to the other side.−(89)+(21)=v−(21)+(21)
Add Fractions: Before we can add the fractions, we need a common denominator. The least common denominator for 8 and 2 is 8. So we convert (1/2) to (4/8) to have the same denominator. −(9/8)+(4/8)=v
Combine Fractions: Now we add the fractions on the left side:−89+84=−85So, −85=v
Final Value of v: We have isolated v and found its value:v = −85
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