The direct answer for 7 + 4xz + 5 + 2xz + 2y = 6xz + 2y + 7
For more of an explanation: You have to group the similar things together. You can't add 7 to 4xz just like you can't add 2xz and 2y. So, we'll look through and add each of the like terms together. 7 + 5 = 9. 4xz + 2xz = 6xz. 2y is by itself. So the final solution is 6xz + 2y + 7. We can't simplify the problem and more since we don't know the values for x, y, or z
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6y + 5
-2x=2y+5 +2x -2y -2y=2x+5 /-2 y=-1/1+2.5
3x + 5 + x + 10 + 2y 4x + 2y + 15 |:2 2x + y + 7.5 2x + y + 7.5 is equivalent to the original.
2y + 1.
If you mean 3x+2y = -5 and -2x+3y = -5 then they are straight line equations