If you were to draw both graphs, then the point that they cross will give you the solutions for both x and y at the same time.
To draw the graphs, get them into the form y = mx+c, where m is the gradient and c the y intercept.
We have then y = 2/5x +0 & y = 3/2x+0
Therefore the only solution is x = y = 0
By graphing the lines on the coordinated plane they will intersect at (2, -4) which is the solution of the equations
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.
2x+a=p 2x=p-a x=.5p-.5a
x = -8
2x+3 = 7 2x = 7-3 2x = 4 x = 2
By graphing the lines on the coordinated plane they will intersect at (2, -4) which is the solution of the equations
Yes, they are. If you solve 2x + 7y = 6 for y, you get y = (-2x + 6) / 7. If you solve 7y + 2x + 6 = 0 for y, you get y = (-2x - 6) / 7. As you can see, both equations have the same slope. Therefore they are parallel. You can punch those equations into a graphing calculator and visually verify that they are indeed parallel.
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.
2x+a=p 2x=p-a x=.5p-.5a
You can't solve a formula with no equals sign
y= -2x
2x-3=9 so 2x=12 and x=6
3
x = -8
meant to be e^x = 2e^1-2x
2x - 4 = -10 2x = -10 +4 2x = -6 x = -3
2x+32 = 1 2x = 1-32 2x = -31 x = -15.5