280+.05*2940
Chemicals equations use chemical formulas and other symbols instead of words to summarize a reaction.
When (the graph of the equations) the two lines intersect. The equations will tell you what the slopes of the lines are, just look at them. If they are different, then the equations have a unique solution..
These are two expressions, not equations. Expressions do not have solutions, only equations do. NB equations include the equals sign.
Inconsistent linear equations in two variables.
Without any equality signs they can't be considered to be equations.
The two equations represent the same straight line.
Solving equations in two unknowns requires two independent equations. Since you have only one equation there is no solution.
No.
There is only one equation, so it's not a system of equations.
Without any equality signs the given terms can't be considered to be equations.
When x = -2 then y = 4 which is the common point of intersection of the two equations.
If you mean 3x+2y = -5 and -2x+3y = -5 then they are straight line equations