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2x - 3y equals 4 and x plus 4y equals -9?
(-1,-2)
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,
What does y equal if its 3y equals 7y plus 24.4?
3y=7y+24.4 First, try to get all the y-terms on the same side of the equation. Easily done here by subtracting 7y from both sides 3y-7y=7y-7y+24.4 -4y=24.4 Now divide by -4 -4y/-4=24.4/-4 y=-6.1
How do you work out 7y - 3y - 14 equals 14?
7y-3y-14=14 4y-14=14 4y-14+14=14+14 (adding 14 on both side) 4y=28 (4y)/4=28/4 (dividing by 4 on both side) y=28/4=7
What is the solution of 4y-x equals 10 3y plus 5x equals -4?
x=-2, y=2
4y plus 4 equals 3y-5?
4y + 4 = 3y - 5 y = -9
What is y if 4-3y-y equals 0?
4 - 3y - y = 04 - 4y = 0add 4y to both sides4 = 4ydivide both sides by 4y = 1
If y plus 3y plus 10 equals 70 what does y equal?
If y + 3y + 10 = 70, then 4y + 10 = 70, and 4y = 60. We then find that y = 60/4 = 15.
3x-3y equals 12 4y-8x equals -16?
(0,-4)
X equals -4-3y and -3x-4y equals 12?
x = - 4 and y = 0
3y plus 4y equal 19?
"3y + 4y = 19" is a mathematical sentence involving one unknown, y. If you wanted it solved (ie you meant to ask; "What is y in 3y plus 4 y equals 19"), then: 3y + 4y = 19 → (3 + 4)y = 19 → 7y = 19 → y = 19/7 = 2 5/7 ≈ 2.71
2x - 3y equals 4 and x plus 4y equals -9?
(-1,-2)
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,
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 does y equal if its 3y equals 7y plus 24.4?
3y=7y+24.4 First, try to get all the y-terms on the same side of the equation. Easily done here by subtracting 7y from both sides 3y-7y=7y-7y+24.4 -4y=24.4 Now divide by -4 -4y/-4=24.4/-4 y=-6.1
How do you work out 7y - 3y - 14 equals 14?
7y-3y-14=14 4y-14=14 4y-14+14=14+14 (adding 14 on both side) 4y=28 (4y)/4=28/4 (dividing by 4 on both side) y=28/4=7
What is the solution of 4y-x equals 10 3y plus 5x equals -4?
x=-2, y=2
