My sister is 18 years old. My brother says that his age minus eighteen is equal to my sister's age. How old is my brother?
Enter an equation, using b as your variable, to find how old my brother is.
The equation is
My brother is
years old.

The brother is 36 years old.

Step-by-step explanation:

b = brothers age

b - 18 = 18 | Given

b = 36 | Add 18 to both sides to cancel out -18 and get his age.

£56

step-by-step explanation:

u divide 24 by 3 and u get 8 so if u do 8 time 7 or 8+8+8+8+8+8+8 u get 56 and 56 divided by 7 is 8.

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3