First collect like terms in the second equation: 5x - 18 = 4y - 3y ie y = 5x - 18
Substitute this for the term in y in the first equation, getting 3x + 2(5x - 18) = 16
ie 3x + 10x - 36 = 16
ie 13x = 16 + 36
so x = 4 and y = 5 x 4 - 18 ie 2.
(2,3)
17
x+2(x+3) = 12 x+2x+6 = 12 x+2x = 12-6 3x = 6 x = 2 and y = 5
x=6y-4x=-2y+28Substitute (6y-4) for x in the second equation and solve for y:6y-4=-2y+288y=32y=4Then solve for x:x=6(4)-4=20(20,4)
X = 135 and y = 15 Solved by addition and substitution
If you mean: -x+3y = 6 and x+3y = 18 then by substitution x = 6 and y = 4
(2,3)
If: x+y = 4 and y = 2x+1 Then: 4-x = 2x+1 => 3 = 3x => 1 = x So by substitution: x = 1 and y = 3
Since the second equation is already solved for "y", you can replace "y" by "9" in the other equation. Then solve the new equation for "x".
You'd need another equation to sub in
-2
That is an expression so it can't be solved but it can be simplified(2-3y) * 18 + y36 - 54y + y-53y + 36
How do you solve 4y plus x equals 8
Solve this system of equation using substitution 2x plus 6y equals 24 and 3x-2x equals 24 ?Improved Answer:2x+6y = 243x-2x = 24 => x =24Substitute the value of x into the top equation to find the value of y:48+6y = 246y = 24-486y = -24y = -4So: x = 24 and y = -4
2x + 2y = 44x + y = 1There are many methods you can use to solve this system of equations (graphing, elimination, substitution, matrices)...but no matter what method you use, you should get x = -1/3 and y = 7/3.
-2 plus 5 equals +3
2x-3y=13