Pearson Algebra 1 Common Core, 2011
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Pearson Algebra 1 Common Core, 2011 View details
5. Literal Equations and Formulas
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Exercise 13 Page 112

Let's begin by solving the equation for y.
3x-5y=9
3x-3x-5y=9-3x
- 5y=9-3x
-5y/-5=9-3x/-5
y=9-3x/-5
y=-(9-3x)/5
y=3x-9/5
To find the value of y for each of the x-values, we substitute them into the equation and evaluate.
x 3x-9/5 y
- 1 3 ( -1)-9/5 -12/5
0 3( 0)-9/5 -9/5
1 3( 1)-9/5 -6/5