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Answer:
don't come at me, i haven't done this in a while, so it might not be correct.
3.25 or 3 1/4
Step-by-step explanation:
3/4x + 5 - 7 + 1/2x
3/4x + 1/2x = 5/4 or 1 1/4
So put that back in, and now you have
1 1/4x - 5 - 7
aaaaaaaand 5 - 7 = -2
so then you plug that back in
1 1/4x - -2 which would turn into 1 1/4x + 2 because two negatives make a positive