if (2,-1) is a solution of 5x + by + 4 = 0 then the value of b is?
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Step-by-step explanation:
(2,-1) is a solution of 5x + by + 4 = 0 then the
Answered by
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Answer:
b = 14
Step-by-step explanation:
if (2,-1) is a solution, then the equation must be satisfied with these values. so,
5(2) + b( - 1) +4 =0
10 +4 -b =0
b = 14
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