Question

Explain your answer please.... I would like to know how to solve it myself

Consider the following set of equations:

Equation M: y = x + 4
Equation P: y = 3x + 6

Which of the following is a step that can be used to find the solution to the set of equations?
x = 3x + 6 x + 4 = 3x + 6 x + 6 = 3x + 4 x = 3x

Answer 1

The correct answer is B) x + 4 = 3x + 6

Since both equations start with y = something, we can set the two equations equal to each other and solve.