1.

Solve the given equation by trial andSolve the given equation by trial and error method, 18-5 d=3 d-6

Answer»

By inspection, we get d = 318 - 5d = 18 - 5×3 = 18 - 15 = 33d - 6 = 3×3 - 6 = 9 - 6 = 3



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