x - 2y = 0
4x - 3y = 15
From the first equation, x = 2y.
SUBSTITUTING this value of x in the second equation,
4*(2y) - 3y = 15 ie 8y - 3y = 15 or 5y = 15 so that y = 3
and then, x = 2y gives x = 2*3 = 6
Answer: x = 6, y = 3
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-11/6
What are the mathematical symbols between '3' & '15' and also between '15' & '2y' ??? . - . X. / . = .
5x - y = 55x - 3y = 15from the first equation:5x = 5 + y , substitute it in the second equation:5 + y - 3y = 155 -2y = 15-2y = 15 - 5-2y = 10y = -5Now,solve for x :5x = 5 +y5x = 5 -5 = zerox = zero
-3x + 2y = 9 2y = 3x + 9y = 1,5x + 4,5
4x-2y = 6 -7x+2y = -15 Add both equations together in order to eliminate y: -3x = -9 Divide both sides by -3 in order to find the value of x: x = 3 Substitute the value of x into the original equations to find the value of y: Solution: x = 3 and y = 3