Lesson: Challenging Problem Solving - 08

Advanced Algebra: Example 3

[Page 8 of 37]
Review the following question and then proceed to the task below.

 

If 2x + 3y = 26 and 7x - 5y = 60, then x + y =
–12
–8
8
10
12

Which of the following Problem Solving approaches can be used to solve the question above? Select Yes or No and then click Continue.

  YES NO
Backsolving:
Picking Numbers:
Algebra:
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