- х= -у 6x - бу = 12
I need to find if it’s a substitution or elimination equation and step by step

Just by looking at this question, I say there is no solution because these two equations do not touch or meet on the xy-plane.

- х= -уA

6x - бу = 12B

Solve A for x.

-x = - y

Divide both sides by negative 1.

Doing so, we get x = y. Plug this into B.

6x - 6y = 12

6(y) - 6y = 12

The left side becomes zero.

0 = 12 is a false statement.

There is no solution to this system of

equations in two variables.

Understand?

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.