Week 16 – Math 10

This week i learned about solving systems using substitution

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All I really had to do was substitute x with 3y+2 for the second equation and when i solve for y, i can substitute it again for the first equation and find x.

Step 1: re-arrange an equation to x= ____ or y=____ if necessary

Step 2: substitute the equation into the second equation of x or y

Step 3: Solve equation

Step 4: substitute the found number back into the first equation and solve for the other variable

It is actually really just substituting for substituting because the equation already gives you the what x equals and you have to substitute in the other equation and find it and substitute again