marberman marberman

08-11-2017
Mathematics

contestada

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

Respuesta :

altavistard altavistard

08-11-2017

Solve the system

y = x + 4
y = 3x + 6

Note that both equations have been solved for y. Thus, you can set y = y, or

x+4=3x+6. Simplifying, -2 = 2x, or x = -1.

Another way to look at this would be x + 4 = 3x + 6.

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