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Mathematics
Jazmin Marks
4 July, 10:41
2x-5y=3 4y-x=-3 solve by elimination
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Liberty Lamb
4 July, 11:17
0
x = - 1 and y = - 1
Step-by-step explanation:
to solve this equation we say
let
2x-5y=3 ... equation 1
4y-x=-3 ... equation 2
from equation 2
4y-x=-3 ... equation 2
4y + 3 = x
i. e
x = 4y + 3 ... equation 3
put x = 4y + 3 in equation 1
2 (4y + 3) - 5y = 3
8y + 6 - 5y = 3
3y + 6 = 3
3y = 3-6
3y - 3
divide both sides by the coefficient of y which is 3
3y/3 = - 3/3
y = - 1
put y = - 1 into equation 3
x = 4y + 3 ... equation 3
x = 4 (-1) + 3
x = - 4 + 3
x = - 1
therefore the value of x = - 1 and y = - 1 respectively
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