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What would your next line look like after substituting?
2x +5(3x - 3) = 19
What would your next line look like after substituting?
2x-2x+13 = 13
Which equation would you change and what would you multiply it by?
the first by -6
Which equation would you change and what would you multiply it by?
the 2nd and by 3
If you have the same coefficients and the same constants, what kind of solution do you have?
infinite solutions
If you have different coefficients and different constants, what kind of solution do you have?
one solution
If you have the same coefficient but different constants, what kind of solution is it?
no solution
when using elimination method what kind of math do you use to change one of the equations?
mutliplying
when using elimination method, what 2 things do you need to have?
same coefficient, one positive, one negative
When you rearrange an equation, what happens to the sign of the term when you move it to the other side?
it changes from neg to pos or pos to neg
after you times with the distributive property during substitution, what do you do next?
combine like terms
In the substitution method, what property do you use right after you substitute?
distributive, times
To use the substitution method you have to have one equation in what format?
y= or x =
slope is the change........
in y over change in x
the 2nd point you graph in an equation is the.......
slope
the first point you graph in an equation is the.......
y intercept
To graph a system of equations the equations have to be in what format?
y = mx+b
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