Negative six plus twenty-one equal what

-6+21 = 15

15 is the answer because you subtract and then put the greater no. sign.

43

step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it