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(-1,-2)

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โˆ™ 2010-04-15 15:35:06
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Q: 2x - 3y equals 4 and x plus 4y equals -9?
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2x plus 3y equals 17and3x plus 4y equals 24then5x plus 7y equals?

2x + 3y = 17 3x + 4y = 24 (2x + 3x) + (3y + 4y) = (17 + 24) 5x + 7y = 41


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

10x - 3y + 2x - 4y =(10x + 2x) + (-3y - 4y) =12x - 7y


What is 2x plus 4y-5x plus 3y?

2x + 4y - 5x + 3y = 7y - 3x


Simplify 4x plus 7y plus 2x-3y equals?

6x plus 4y


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

10x+2x-3y-4y=12x-7y


What is the x value 2x-3y equals -15 x equals 4y?

If: 2x-3y = -15 and x = 4y Then: x = -12 and y = -3


How much is (2x plus 3y) plus (4x plus y)?

It is the same as: 6x+4y


Simplify the algebraic expression 4x plus 3y - 2x - 7y?

4x + 3y - 2x - 7y2x - 4y


What is the order pair for 2x - 3y equals 4 and x plus 4y equals -9?

The ordered pair is (-1, -2).


How simplify 5x plus 3y-2x plus 4y?

3x + 7y


What is the answer to 2x-3y equals 4 y equals 8?

Since 2x-3y=4y=8 we can say that 4y=8 therefor y=2 We can also say that 2x-3y=4y and as y=2 2x-6=8 so 2x=14 and x =7 so y=2 and x=7


4y plus 4 equals 3y-5?

4y + 4 = 3y - 5 y = -9


What is the answer to 6x plus 4y equals 62 and 5x plus 3y equals 51?

(9,2)


What is 3y plus 4y plus 6 equals 20?

y=2


What does 4x plus 3y-2x plus y equal?

4x+3y-2x+y 4x-2x+3y+y 2x+4y Taking out 2 common 2(x+2y) Hence the required answer is 2(x+2y)


-2x plus 4y equals 8?

Y = 1/2x + 2


2x plus 4y equals -8?

(-2, -1)


Use addition or substitution to find the value of x for this set of equations 2x - 3y equals -15 x equals 4y?

2x - 3y = -15x => -3y = -17x => -21y = -119x 2x - 3y = 4y => 2x = 7y => 21y = 6x so now you can add the two equations. 0 = -113x x=0 now plug back in 2*0 - 3y = -15*0 -3y = 0 y=0.


Solve this system of equation using substitution 2x -3y equals -4 and x plus 4y equals -9?

2x - 3y = -4x + 4y = -9from the second equation x = -9-4y , substitute it in the first equation.2(-9-4y)- 3y= -4-18-8y-3y = -4-18-11y = -4-11y = -4+18-11y = 14y = -14/11now, solve for x :x = -9-4yx = -9-4(-14/11)x = -43/11


What is the answer to 2x plus 4y equals -6 and x-3y equals 7 using substitution?

1) 2x + 4y = -62) x -3y = 7We can add 3y to both sides of equation 2) to getx = 3y + 7Now we can substitute 3y + 7 for x in equation 1).In other words, we replace any 'x'es in equation 1) with 3y + 7.2x is two times x, so this becomes 2(3y + 7) which is two times 3y_and_sevenEquation 1) becomes2(3y + 7) + 4y = -6or6y + 14 + 4y = -6or10y + 14 = -6Subtracting 14 from both sides,10y = -20Dividing both sides by 10,y = -2.Substituting -2 for y in equation 1),2x - 8 = -6Add 8 to both sides2x = 2x = 1Check our results with equation 2x - 3y = 71 + 6 = 7


4y plus 7 less than 3y plus 9?

4y + 7 < 3y + 9 4y - 3y < 9 - 7 y < 2


How to write the slope-intercept form of 2x plus 4y equals -8?

2x+4y = -8 4y = -2x-8 y = -1/2x-2 or y = -0.5x-2


What is -7y plus 4y?

-7y + 4y = -3y


What is 2X plus 4Y equals eight?

It is a straight line equation.


Solve this equation using subtitution 2x-3y equals 4 and x plus 4y equals -9?

2x-3y = 4 x+4y = -9 => x = -9-4y Substitute x = -9-4y into the top equation: 2(-9-4y)-3y = 4 -18-8y-3y = 4 -8y-3y = 4+18 -11y = 22 Divide both sides by -11 to find the value of y: y = -2 Substitute the value of y into the original equations to find the value of x: Therefore: x = -1 and y = -2 Remember that the product of a minus times a minus is equal to a plus when working out the original equations,