answer is 1
(0, 6.5) is one option.
7
If: 5x+2y = 9 Then: y = -2.5x+4.5 in slope intercept form
The solution consists of the infinite number of points on the line which is defined by y + x = 6.
Since the highest power of 'x' in the equation is '1', there's one solution.
There are no candidates below, so none of them. There are an infinite number of solutions to the equation, and from here, we can't see which ones are on your list of choices.
There is no solution since the equation is inconsistent.
x = 0 and y = 4
The equation does not have a solution.
-5
Without an indication of the equals sign, this is not an equation.
Not sure what you mean; that equation certainly has a solution.
It is a linear equation in x. The equation has the solution x = 0.
Without an equality sign the given expression can't be considered to be an equation but if it equals 0 then using the quadratic equation formula will give its solutions.
x = 19
One equation with two unknowns usually does not have a solution.