5x+2y=10;x+y=10
find the value of x and y
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x+y=10 x=10-y
sub x in equation 1 I.e 5(10-y)+2y
50-5y+2y
50-3y=0
-3y=-50
y=50/3
sub y in x
x=10-50/3
30-50/3
-20/3
Answered by
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Answer:
Step-by-step explanation:
5x + 2y = 10 -----------(1)
x + y = 10 -------------(2)
x = 10 - y ------------(3)
substituting equation (3) in (1)
5 (10-y) + 2y = 10
50 - 5y + 2y = 10
50 - 3y = 10
-3y = -40
y = 40/3
substituting value of y in equation (3)
x = 10 - 40/3
x = 30 - 40/3 = -10/3
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