6x=4y=-12 8x-14y=-16
First, you would have to eliminate a variable. Let's multiply each side of the second equation by two. 7y - 3x = -11 => 14y - 6x = -22 => -6x + 14y = -22 Now you have two new equations: 6x - 9y = 19.5 -6x + 14y = -22 Now add the two equations together to eliminate the variable. 0x + 5y = -2.5 => 5y = -2.5 => y = -0.5 Substitute y = -0.5 into an original equation. 6x - 9y = 19.5 => 6x - 9(-0.5) = 19.5 => 6x - (-4.5) = 19.5 => 6x = 15 => x = 2.5 The answer is: x = 2.5 y = -0.5 or as an ordered pair: (2.5,-0.5)
2y-7 = 14y+29 2y = 14y + 36 -12y = 36 -y = 3 y = -3
-6x^2 - 78x - 252 Improved answer: -6x+6x+7 When simplified = 7
It is equivalent to: 14y+112
6x=4y=-12 8x-14y=-16
x = -2 and y = 0
It is not possible to solve a single linear equation in two variables.
It is: 2(3x-7y) = 6x-14y
You mean like these?: 9 * 2 - (-2 + 9) + 15 / (4.5 + 3) (6x + 7y) * 2 (y - 6x)=(6x*2y)-(6x*12x)+(2y*7y)-(12x*7y)=12xy-72x^2+14y^2-84xy=14y^2-72x^2-72xy
If: 6+17y = 15+14y then 17y-14y = 15-6 so 3y = 9 and then y = 3
First, you would have to eliminate a variable. Let's multiply each side of the second equation by two. 7y - 3x = -11 => 14y - 6x = -22 => -6x + 14y = -22 Now you have two new equations: 6x - 9y = 19.5 -6x + 14y = -22 Now add the two equations together to eliminate the variable. 0x + 5y = -2.5 => 5y = -2.5 => y = -0.5 Substitute y = -0.5 into an original equation. 6x - 9y = 19.5 => 6x - 9(-0.5) = 19.5 => 6x - (-4.5) = 19.5 => 6x = 15 => x = 2.5 The answer is: x = 2.5 y = -0.5 or as an ordered pair: (2.5,-0.5)
2y-7 = 14y+29 2y = 14y + 36 -12y = 36 -y = 3 y = -3
-4y
It's a linear expression in two unknowns.It can be simplified a little bit:18x + 14y + 3x - 10y = 21x + 4y
-6x^2 - 78x - 252 Improved answer: -6x+6x+7 When simplified = 7
7+10+(-6x)=17-6x