A + d = 7......a = 7 - d
5a + 8d = 44
5(7 - d) + 8d = 44
35 - 5d + 8d = 44
-5d + 8d = 44 - 35
3d = 9
d = 9/3
d = 3
a + d = 7
a + 3 = 7
a = 7 - 3
a = 4
Harlan can purchase 4 pair of athletic socks (a) and 3 pair of dress socks (d)
Answer:
6 + 9x = 5 is the equation for it.
Answer:
Hello ?????????????? hello !!!!
The first expression is equivalent to B
The second expression is equivalent to A
The third expression is equivalent to C
You are basically adding like terms. For example for the first expression, it is 7x^2 + 2x^2, which equals 9x^2. Remember since you're adding, do not add the exponents.