Question

Help please I forgot my notes
Need answers asap- it's due in a few hours
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Answer 1

I'm not to sure if I know the other ones but number 12th Is 6

Explanation:

Since the two lines intersect at point Q(x,y) the x & y values of both lines must be equal at point Q. so 3x+14=7x-10. Solving for x yields x = 6.