The "solution" means the numerical values of 'x' and 'y' that make the statement true.
Right now, there are an infinite number of solutions. Here are a few of them:
X . . . . Y
-1 . . . . 2
2 . . . . . 4
5 . . . . . 6
8 . . . . . 8
11 . . . . 10
In general, you need the same number of separate equations as the number of "variables"
or "unknowns" in them.
Since your equation has two unknowns ... 'x' and 'y' ... you need another equation, in order to
pin the solution down to a single pair of numbers for them.
Not sure what you mean; that equation certainly has a solution.
2x + 3 = 72x = 4x = 2
It does if x=2. That's the solution of your equation.
An equation, solution x = -10
X=2
Not sure what you mean; that equation certainly has a solution.
2x + 3 = 72x = 4x = 2
x = 0 and y = 4
It is a linear equation in x. The equation has the solution x = 0.
It does if x=2. That's the solution of your equation.
An equation, solution x = -10
X=2
2x + 4 = 8Subtract 4 from each side of the equation:2x = 4Divide each side by 2:x = 2
the answer is y minus 10 divided by 2.
2x + 4 is an expression, not an equation. There can be no solution set for an expression.
It appears to be a simple linear equation in 'x'. But it has no solution. There is no numerical value for 'x' that can make it a true statement.
The solution is (x, y, z) = (2.5, 1, 2.5).