Write and solve an equation to find the number.

the sum of -5 and a number is -15.

a.
-5 + n = -15; -10
c.
n + 5 = -15; -20
b.
5 - n = -15; 20
d.
5n = -15; -3

the infinity sign

step-by-step explanation:

x=half

step-by-step explanation:

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: