Solve4x + y = 7, 2x-3y = 7 using method of elimination by substitution – InterviewSolution

1.

Solve4x + y = 7, 2x-3y = 7 using method of elimination by substitutioní3Âˇu"

Answer»

4x + y = 7 .....(1)2x - 3y = 7 ......(2)

eq(1) - eq(2) × 2

4x + y = 74x - 6y = 14

7y = - 7y = -1So,4x - 1 = 74x = 8x = 8/4x = 2

So, x = 2 and y = -1

thank u

by substitution method

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