A monomial contains one term, a binomial contains two terms, and a polynomial contains more than two terms.

To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the equal sign and the answer on the other.

3c + 9 = \( \frac{c}{-2} \)
-2 x (3c + 9) = c
(-2 x 3c) + (-2 x 9) = c
-6c - 18 = c
-6c - 18 - c = 0
-6c - c = 18
-7c = 18
c = \( \frac{18}{-7} \)
c = -2\(\frac{4}{7}\)

To solve this equation, repeatedly do the same thing to both sides of the equation until the variable is isolated on one side of the < sign and the answer on the other.

-7a + 3 < -5 + 3a
-7a < -5 + 3a - 3
-7a - 3a < -5 - 3
-10a < -8
a < \( \frac{-8}{-10} \)
a < \(\frac{4}{5}\)

The formula for area is πr². Radius is circle \( \frac{diameter}{2} \):

r = \( \frac{d}{2} \)
r = \( \frac{8}{2} \)
r = 4
a = πr²
a = π(4²)
a = 16π

To combine like terms, add or subtract the coefficients (the numbers that come before the variables) of terms that have the same variable raised to the same exponent.

5a³ + 5a³ = 10a³