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Yes, x =7 and y = 4 is one of many solutions, if that is the only equation given.

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Q: Is 7 and 4 a solution of 3x subtract 4y equals 5?
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What is the slope to 3x plus 4y equals 12?

3x + 4y = 12 Subtract 3x from each side 4y = 12 - 3x Divide by 4 on each side y = 3 - .75x The slope is what is multiplied by "x" or -.75


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Subtract: 3x - 3x - 4y - 2y = 30 - 6 ie -6y = 24 so y = -4 and x = 14/3


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2x + 4y = 16 is the same as 4y = -2x + 16 divide both sides by 4 and you get y = (-x/2) +4 3x - 2y = 6 is the same as -2y = -3x + 6 divide both sides by 2 and you get y = (-3x/2) + 3 therfore they do not have the same solution


What would x and y be if the equation is 3x-4y equals 10 and -3x equals 4y equals 8?

3x - 4y = 10-3x - 4y = 8 -> add line 1 to line 2 3x - 4y = 100x - 8y = 18 -> -8y = 18 -> y = -18/8 = -9/4 -> 3x - 4*(-9/4) = 10 -> 3x + 9 = 10 -> 3x = 1 -> x = 1/3


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X equals -4y 3x plus 2y equals 20?

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4y = 3x+11 or as y = 3/4x+11/4


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3x plus 2y equals 4 -3x plus 4y equals -10?

(2, -1)