4x+3y = 12 3y = -4x+12 y = -4/3x+4
4x+3/3=y
a) 4x+13y=40 b) 4x+3y=-40c) multiply b per(-1)=-4x-3y-40d) sum a and c: 4x+13y-4x-3y=40-(-40)=>10y=80 => y=8to find x replace y per its value in a or b and get x=-16
Presumably this is a simultaneous equation in the form of: -4x+3y = 27 -2x+y = -1 Multiply all terms of the bottom equation by 2: -4x+3y = 27 -4x+2y = -2 Subtract the bottom equation from the top equation remembering that a - - is equal to a + Meaning that -4x - -4x = 0 and 27 - -2 = 29: So y will = 29 Substitute the value of y into the original equations to find the value of x Therefore: x = 15 and y = 29
4x + 3y + 3 = 4 ----> 4x = 1 - 3y ----> x = 0.25 - 0.75y ----> 3y = 1 - 4x ----> y = (1/3) - (4/3)x
5x+3y
4x + 3y = 7 y = [(-4)/3] x + 7/3
You need to organise your question properly. 3x+2y=4 4x + 3y= 7? Is 4 4x = 44x or 4-4x or 4+4x How can there be 2 equal signs in 1 equation?
-4x + 3y = 9
3y = 4x + 9 -4x + 3y = 9 is the standard form
3y=4x+9.....-4xAnswer: 4x-3y=9
4x + 3y=9 x=0 y=3
4x+3y = 12 3y = -4x+12 y = -4/3x+4
4x+3y = 6 3y = -4x+6 y = -4/3x+2 in slope intercept form
To solve for 2 unknown variables you need 2 independent equations. You have only 1.
x = 3 and y = 0
4x + 3y = 6y 4x = 3y 4/3 x = y The slope is 4/3 and the y intercept is 0.