Question

4x+7y=115 and4x+2y=90 find the value of X and Y​

Answer 1

Step-by-step explanation:

4x + 7y = 115 --------(1)

4x +2y = 90 --------(2)

subverting equestion (2) from (1)

4x + 7y = 115

4x + 2y = 90

- - = -

_____________

0 + 5y = 25

5y = 25

y = 25/5

y = 5

putting the y = 5 in equation in (1)

4x + 7(5) = 115

4x + 35 = 115

4x = 115 - 35

4x = 80

x = 80/4

x = 20

x = 20 , y = 5

Answer 2

Answer:

x is 20 and y is 5

Step-by-step explanation:

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