How do you solve the simultaneous equations #7a - 3b = 17 # and #2a + b = 16#?
2 Answers
Explanation:
[1]
[2]
Multiply both sides of [2] by
[3]
Add [1] and [3]
[4]
Divide both sides by
[5]
Substitute
[6]
Simplify
[7]
Explanation:
We are given
Let's get the
Now, let's add
Now, substitute
Let's check to see if our answers are correct by plugging in the values we found for both