no
21
2x + 5 = 25 2x = 20x = 10
x = 0 and y = 4
If: 3x+2y = 5x+2y = 14 Then: 3x+2y = 14 and 5x+2y =14 Subtract the 1st equation from the 2nd equation: 2x = 0 Therefore by substitution the solutions are: x = 0 and y = 7
no
zero solutions. If you plot these two lines, you will see that they are parallel and do not intersect.
The quadratic equation will have two solutions.
-2x plus 3y equals 1
y = 2x + 1 IS a linear equation!
There are 0, or no solutions to these equations. If you rearrange each equation to look like an equation of a line, you will have the two lines:y = x -1 and y = x + 1, which are two parallel lines. They do not intersect at any point, so there is no solution.
3
4
21
It is a quadratic equation with no real roots or real solutions. In the complex domain, the solutions are 1 +/- i where i is the imaginary square root of -1.
It is an equation and the value of x is 1
It is a simultaneous equation and when solved its solutions are x = 71/26 and y = 50/13