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Is x equals 6 and y equals 8 then 9x plus 10y equals?
x = 6y = 89x + 10y = 9(6) + 10(8) = 54 + 80 = 134
3x plus 10y equals 7 -8x - 4y equals 17?
Multiply the first by 8 and the second by 3
6y-5 equals 8 plus 10y?
6y-5=8+10y 6y-10y=8+5 -4y=13 y=-3.,25 because: 6*3.25-5=-24,5 and 8+10*3.25=-24,5 true
Y plus x equals 9 10y plus 20x equals 100?
y + x = 9 10y + 20x = 100 This is a basic linear system of equalities. We can start by rewriting the first equation as: -10y - 10x = -90 by multiplying the equation by -10, from here we can eliminate y and solve for x (-10y - 10x = -90) + (10y + 20x = 100) = (10x = 10) This yields x = 1, and by plugging x into the first equation y = 8
If 10y-6 is equal to 2 plus 4y what does y equal?
you have to bring the "y" to one side. 10y - 6 = 2 + 4y 10y-4y = 2 + 6 6y = 8 y = 8/6 If you substitute 8/6 into y you will find that 8/6 is the answer
Is x equals 6 and y equals 8 then 9x plus 10y equals?
x = 6y = 89x + 10y = 9(6) + 10(8) = 54 + 80 = 134
3x plus 10y equals 7 -8x - 4y equals 17?
Multiply the first by 8 and the second by 3
6y-5 equals 8 plus 10y?
6y-5=8+10y 6y-10y=8+5 -4y=13 y=-3.,25 because: 6*3.25-5=-24,5 and 8+10*3.25=-24,5 true
How do you write 4x equals 10y-8 in standard form?
You're there. 4x = 10y - 8.[so subtract 10y from both sides, 4x - 10y = -8]multiply b.s. by -1 , gives -4x +10y = 8
Y plus x equals 9 10y plus 20x equals 100?
y + x = 9 10y + 20x = 100 This is a basic linear system of equalities. We can start by rewriting the first equation as: -10y - 10x = -90 by multiplying the equation by -10, from here we can eliminate y and solve for x (-10y - 10x = -90) + (10y + 20x = 100) = (10x = 10) This yields x = 1, and by plugging x into the first equation y = 8
Factor y2-10y plus 16?
(y - 8)(y - 2)
If 10y-6 is equal to 2 plus 4y what does y equal?
you have to bring the "y" to one side. 10y - 6 = 2 + 4y 10y-4y = 2 + 6 6y = 8 y = 8/6 If you substitute 8/6 into y you will find that 8/6 is the answer
What is 3x plus 2y if x8 and 10y?
If x = 8 and y = 10 then it is 44.
Which property justifies the following statement if W plus -8 equals 16 then w plus -8 plus 8 equals 16 plus 8?
It is the property that equals plus equals are equals.
How do you factorise y squared minus 10y plus 16?
(y - 8)(y - 2)
What is the answer to the following system x plus 2y equals -5 and 2x plus 3x equals -9?
x + 2y = -5 2x + 3x = -9 5x = -9 x + 2y = -5 x = -2y - 5 5(-2y - 5) = -9 -10y - 25 = -9 -10y = 16 y = -5/8 x = -2y - 5 x = -2(-5/8) - 5 x = -5/4 - 5 x = -25/4 (-25/4, -5/8)
8 plus 7 plus 5 equals plus 8 equals?
it is 28
