what is 7c-9? im so confused, i need help :(
7c - 9 means
7 times an unknown number minus 9
There is nothing you can say about 7 c - 9 except that it is 7 c - 9
There has to be more to the problem to say anything meaningful.
For example if we said
7 c - 9 = 5
then
7 c = 5+9
7 c = 14
c = 2
To solve the expression 7c - 9, you need to understand the concept of combining like terms in algebra.
Step 1: Identify the terms in the expression. In this case, we have two terms: 7c and -9.
Step 2: Combine the terms that are like (similar). In this case, we have only one variable term: 7c. The coefficient of this term is 7, which means multiplying 7 with c.
Step 3: The constant term in the expression is -9.
Step 4: Put the like terms together. 7c - 9 can be written as a single expression.
So, the final answer is:
7c - 9
Please note that if there were other terms present in the expression, you would need to combine them accordingly.