Question

what number should be subtracted from 7 by -8 to get minus 13 by 21

Answer 1

Let's solve your equation step-by-step.

7−8−x=1321

Step 1: Simplify both sides of the equation.

7−8−x=1321

−78+−x=1321

−x+−78=1321

Step 2: Add 7/8 to both sides.

−x+−78+78=1321+78

−x=251168

Step 3: Divide both sides by -1.

−x−1=251168−1

x=−251168

Answer 2

Let he number be x

7/-8-x=13/21

x=-8/7-13/21

x=24-13/21

x=11/21

Hope it helps

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