- 3 x - 4y = 16
2x - 34
10 find value of x and y
Answers
Answered by
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Step-by-step explanation:
2x + 3y = 16…………. (1)
3x + 4y = 23………….. (2)
After multiplying (1) by 3 and (2) by 2, we have
6x + 9y = 48…………. (3)
6x + 8y = 46………….. (4)
After subtracting (4) from (3), we have
y = 2
Now substitute the value of y in (1)
2x + 3 (2) = 16
2x +6 = 16
2x = 16-6
2x = 10
x = 10/2
x = 5
so we have x=5 and y= 2
Verification:::
Substitute the values of x and y in (2)
3x + 4y = 23
3(5) + 4 (2) = 23
15 + 8 = 23
23 =23
RHS = LHS
Answered by
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