0
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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-7x-2y equals -13 x-2y equals 11?
-11/6
Solve the system using substitution 5x-y equals 5 diveded by5x-3y equals 15?
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
How do you do this problem 8y - 3 15 2y?
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How do you solve this linear system using elimination method 4x-2y equals 6 and -7x plus 2y equals -15?
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
What is 5y equals 9 plus 2y equals?
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2y = 15 y = 15/2 y = 7.5
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There are 2 unknowns
What is the answer to the equation 15-2y equals 3y?
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X plus 2y equals -1 5x - 4y equals 16?
x+2y = -1 and 5x-4y = 16 Solving the simultaneous equations gives: x = 2 and y = -1.5
What is X - 2y equals -1 and 2x - y equals 4?
Solving by the elimination method gives: x = 3 and y = 2
8x-y equals 54 8x plus 2y equals 60?
Solving by the elimination method: x = 7 and y = 2
What is 8y minus 3 equals 15 plus 2y?
y equals 3
7 plus 2y equals 15?
Therefore, y = 4 7 + 2y = 15 7-7 + 2y = 15-7 Subtract 7 from both sides 2y = 8 Divide by 2 to get y alone 2y/2 = 8/2 y = 4
What is 7 plus 2y equals 15?
7+2y=15subtract 7 from each side of the equal sign2y=8divide each side by 2y=4
How do you find the solution to x2-4y2 equals 16 and 2y-x equals 2?
x2 - 4y2 = 16∴ (x - 2y)(x + 2y) = 162y - x = 2∴ x = 2y - 2∴ ([2y - 2] - 2y)([2y - 2] + 2y) = 16∴ (y - 1 - y)(y - 1 + y) = 16∴ -1(2y - 1) = 16∴ 1 - 2y = 16∴ -2y = 15∴ y = -7.52y - x = -2∴ -15 - x = -2∴ x = -13So the point of intersection is (-13, -7.5)
What is the slope intercept form of the equation 5x plus 2y equals 30?
5x+2y = 30 2y = -5x+30 y = -2.5x+15 Therfore the slope is 2.5 and y the intercept is 15.
