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Steve
Blake
Coach"Solve" means to find the unique value of every variable, i.e. 'x' and 'y'.
You can't do that with this equation. It's the equation of a straight line, and every point
on the line satisfies the equation. There are an infinite number of them.
If you had another equation relating the values of 'x' and 'y', there would be only a single
point that satisfied both equations. That point would be the solution of the pair.
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2cy plus 2xy equals 15 solve for y?
Y=15/(2c+2x)
How do you solve 2xy plus 6 equals 4xyz for y?
2xy + 6 = 4xyz Divide through by 2: xy + 3 = 2xyz 3 = 2xyz - xy = y*(2xz - x) Therefore, y = 3/(2xz - x) provided that 2xz - x is not zero.
Evaluate 2xy when x equals 30 and y equals 2?
2xy=2*30*2=120
How do you evaluate 2xy times 9 if x equals 3 and y equals 2?
2xy*9 if x=3 and y = 2 2(3)(2)*9 12*9 108 You substitute x and y for their equivalent (3 and 2) then simply multiply 2*x*y, then multiply the answer of that by 9.
When x-y equals 7 and xy equals 8 find the value of x square plus y square?
x2 + y2 = x2 - 2xy + y2 + 2xy = (x - y)2 + 2xy = 72 + 2*8 = 49 + 16 = 65 You could, instead, solve the two equations for x and y and substitute, but the above method is simpler.
