Answer: 18x- 9
Step-by-step explanation:
1.) Put the numbers in their correct lineup. 18 * x - 9
2. Add parentheses around 18 * x, secluding them away from the -9.
(18 * x) -9
3.) Remind yourself of PEMDAS (Parentheses, Exponents, Multiplication, Division, Add, and Subtract). In this equation, 18 * x are in parentheses().
(18 * x)
4.) Multiply 18 * x... Which equals 18x.
5. Equation should now look like : 18x - 9
6. You can't combine those two numbers because the coefficiant (The coefficiant is 18.) and the regular number (-9) are not equal.
8. Answer : 18x-9