pls need urgent maths help?

Question

using only negative numbers
?-?= 5
?-?= -5

Answer 1

-5 - -10 = 5
-10 - -5 = -5
pretty easy

Answer 2

Order of operations tells us to start with the multiplication first. 5/8 x 4/7 When you are multiplying fractions, multiply the numerators and multiply denominators. 5 x 4 = 20 8 x 7 =56 so 5/8 x 4/7 = 20/56 Add this product to 1/7 20/56 + 1/7 When adding fractions, the denominators must be the same. Since 7 is a factor of 56, we will make 56 our denominator for both fractions. 20/56 stays the same, but 1/7 must be converted to an equivalent fraction with 56 in the denominator. Since we have to multiply 7 x 8 to get 56, we will multiply the numerator (1) by 8 as well. 1/7 = 8/56 When you add fractions, you add the numerators, but the denominator stays the same. 20/56 + 1/7 = 20/56 + 8/56 = 28/56 Now we simplify the fraction by dividing the numerator and denominator by a common fator. 7 is a factor of 28 and 56. 28/7 = 4 56/7 = 8 28/56 = 4/8 4 is a factor of 4 and 8 4/4 = 1 8/4 = 2 28/56 = 4/8 = 1/2

Answer 3

-5 -(-10) = 5 which is the same as.... -5 + 10 = 5

-10-(-5) = -5 which is the same as.... -10 + 5 = -5

Hope this helps!

Answer 4

-5-(-10)=5
-10-(-5)=-5

Answer 5

(-5)-(-10)=5
(-10)-(-5)=-5

Answer 6

(- 5) - (- 10) = 5

- 5 + 10 = 5

5 = 5

- - - - - - - - - - - -

(- 10) - (- 5) = - 5

- 10 + 5 = - 5

- 5 = - 5

- - - - - - - - - - s-

Answer 7

(-5) - (-10) = 5
(-6) - (-1) = -5

remember that a minus and a minus equals a plus

Answer 8

(-3) - (-8) = 5
(-9) - (-4) = -5.

Answer 9

-15 - (-20) = 5
-15 - (-10) = -5

not sure if this is what you mean

Answer 10

first one i have no idea! lol

(-20) - (-15) = -5