Word Problem #18 from Test 4.1,2,3,4,5
S. Keel Math III Mr. Kirkland's Class
This is my number 18 word problem summarized in a brace map. I created an equation from the information given in the word problem (TTS=T+T+S+5150).
I then took the equation and substituted S with T+1 and solved until I got T^3+T^2-3T-5151=0.
Then I plugged it into y= and wherever the line crosses the x-axis at would represent T. The line crossed the x-axis at x=17, so the twins are 17 years old.