Solve using substitution: ♥︎
x+y=-3
y+5x+3

Question

Solve using substitution: ♥︎
x+y=-3
y+5x+3

melissa_something · Answer

This is easy, but I get stuck on simple things... :/

dumbcow · Answer

what part do you get stuck on?

can you solve one equation for y ?

melissa_something · Answer

I get stuck on the part where you have to put one equation in the other and solve. && What do you mean solve one equation for y? :( @dumbcow

dumbcow · Answer

ok, i mean for equation
y +5x = 3

can you use algebra to isolate "y"
y = something

melissa_something · Answer

OMG my bad it's supposed to say y=5x+3

dumbcow · Answer

oh ok , well then its already solved for you

now to substitute, you will take everything on right side and replace it with the "y" in other equation

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dumbcow · Answer

Now you have

x + 5x +3 = -3

combine terms

6x +3 = -3

6x = -6

x = -1

melissa_something · Answer

Thank you so much! I wasnt sure if i put parenthesis or not! (:

dumbcow · Answer

yw

melissa_something · Answer

Um, also it says "If the system is inconsistant or has dependent equations say so?

dumbcow · Answer

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