Question

x+y=5,2x-3y=4 solve this question by substitution method​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

x + y = 5

∴ x = 5 - y     ⇒ (1)

2x - 3y = 4

substituting (1) in the above equation, we get

2(5 - y) - 3y = 4

∴ 10 - 2y -3y = 4

∴ 10 - 5y = 4

∴ 5y = 6

∴ y = 6/5

substituting the value of y in equation 1, we get

x = 5 - 6/5

multiplying throughout by 5, we get

5x = 25 - 6

∴ 5x = 19

∴ x = 19/5