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What is the value of y when x equals -2 in the equation 8x - 3y equals -7?
Wiki User
∙ 13y ago
-3 (-2times8)=-16 to get to -7 you need to add 9 So if the other value is-3x, you need a -3 to equal a +9
Wiki User
∙ 13y ago
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Solve this equation using addition method -8x plus 3y equals -5 and 8x subtract 2y equals 6?
x=1, y=1
Solve this equation using subtitution 8x subtract y equals 4 and 5x plus 3y equals 17?
y=4x=1Because:8x - y = 45x + 3y = 17You can rearrange the first equation to give:y = 8x - 4And substitute this into the second equation:5x + 3(8x - 4) = 17Expanded out:5x + 24x - 12 = 1729x - 12= 1729x = 29So x=1And because you know know x you can put that into an equation to find y:y = 8x - 4y= 8 - 4y= 4
-8x plus 3y equals -5 8x - 2y equals 6?
(1, 1)
8x-y equals 31and 5x plus 3y equals 23?
3(8x-y = 31) 5x+3y = 23 Multiply all terms in the top equation by 3: 24x-3y = 83 5x+3y = 23 Add both equations together in order to eliminate y: 29x = 116 Divide both sides by 29 to find the value of x: x = 4 Substitute the value of x into the original equations to find the value of y: Therefore: x = 4 and y = 1
What is 8x 7 equals 6x 21?
It is an equation and the value of x is 7
8x plus 3y equals 24 slope intercept form?
8x + 3y = 248x - 8x + 3y = -8x + 243y = - 8x + 243y/3 = (- 8x + 24)/3y = -8x/3 + 24/3y = (-8/3)x + 8 this is the slope-intercept form of the equation of the line, y = mx + b, where the slope m is -8/3 and the y-intercept b is 8.
Solve this equation using addition method -8x plus 3y equals -5 and 8x subtract 2y equals 6?
x=1, y=1
Solve this equation using subtitution 8x subtract y equals 4 and 5x plus 3y equals 17?
y=4x=1Because:8x - y = 45x + 3y = 17You can rearrange the first equation to give:y = 8x - 4And substitute this into the second equation:5x + 3(8x - 4) = 17Expanded out:5x + 24x - 12 = 1729x - 12= 1729x = 29So x=1And because you know know x you can put that into an equation to find y:y = 8x - 4y= 8 - 4y= 4
-8x plus 3y equals -5 8x - 2y equals 6?
(1, 1)
8x-y equals 31and 5x plus 3y equals 23?
3(8x-y = 31) 5x+3y = 23 Multiply all terms in the top equation by 3: 24x-3y = 83 5x+3y = 23 Add both equations together in order to eliminate y: 29x = 116 Divide both sides by 29 to find the value of x: x = 4 Substitute the value of x into the original equations to find the value of y: Therefore: x = 4 and y = 1
What is -8x - 70 equals 6x?
It is an equation and the value of x is -5
What is 8x 7 equals 6x 21?
It is an equation and the value of x is 7
Solve 4x plus 3y equals 8x plus y for y?
4x + 3y = 8x + y so 3y - y = 8x - 4x ie 2y = 4x so y = 2x
What Is the standard form for 8x - 3y equals 6 - 4x?
8x-3y=6-4x gives 12x-3y=6 which in standard form is y=-2+4x
3x - 3y equals 12 4y - 8x equals -16?
3x - 3y = 12 ,,,, divide all equation on 3 ---> x - y = 4 .. Eq.14y - 8x = -16 ,,,, divide all equation on 4 ---> -2x + y = -4 .. Eq.2by calculating the two eq. together the result will be :x - 2x = zero-x = zeroX = zeroPut the value of X, on Eq.1 to find the value of Y :x - y = 4zero - y = 4Y = 4
Graph -8x plus 3Y equals 12?
-8x+3y=12 3y = 8x+12 y = (8/3)x + 4 So it will be a line with slope 8/3 and y intercept of 4
What is the value of x in the equation 8x plus -2 equals 10?
3/2
