2x+5y=17
3x+4y=15
Find out x and y
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Answer:
x = 1 and y = 3
Step-by-step explanation:
2x + 5y = 17
Multiplying both sides by 3, we get
6x + 15y = 51 ...(i)
3x + 4y = 15
Multiplying both sides by 2, we get
6x + 8y = 30 ...(ii)
Subtracting equation (i) from (ii)
6x + 15y = 51
- 6x - 8y = -30
____________
0 + 7y = 21
∴ y = 3
Substituting the value of y in the equation:2x + 5y = 17
2x + 5(3) = 17
⇒2x + 15 = 17
⇒2x = 17 - 15
⇒2x = 2
∴ x = 1
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