8. An Introduction to Equations
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Use mental math to guess the starting value for the table.
3t-(-5.4)=5.4 In order to choose a good starting point for our table, let's pretend that the equation is 3t=5.4. What multiplied by 3 would get us close to 5.4? 2 would be valid, so it will be our starting point.
t | 3t-(-5.4) | = |
---|---|---|
2 | 3 (2)-(-5.4) | 11.4 |
1 | 3 (1)-(-5.4) | 8.4 |
0 | 3 (0)-(-5.4) | 5.4 |
We can see that t=0 is the solution to our equation.