What number should go in the space? Multiplying by 1.75 is the same as increasing by _____%.
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Take the numerator of the fraction and factor it out.
Your fraction should now look like this:
Because (x+4) is present in both the numerator and denominator, you can cross it out. You should be left with only (x-1) in the numerator.
x cannot equal -4, as if it is inputted in the denominator, -4 + 4 would equal 0. Dividing by 0 is impossible.
Your fraction should now look like this:
Because (x+4) is present in both the numerator and denominator, you can cross it out. You should be left with only (x-1) in the numerator.
x cannot equal -4, as if it is inputted in the denominator, -4 + 4 would equal 0. Dividing by 0 is impossible.