# Find the like terms in the expression

1.) y + 1.2y + 1.2z
2.) simplify 2 + 17x - 5x + 9
3.) simplify 3(5 =6) - 4
4.) Factor 81 – 27p

2.) D
3.) C
3.) B

## I'll do the first one.

y + 1.2y + 1.2z
2.2y + 1.2z

Do you have a typo in number 3?

A
B
C
B

## 1.) To find the like terms in the expression y + 1.2y + 1.2z, you need to identify terms that have the same variable(s) with the same exponent(s). In this case, the like terms are y and 1.2y because they both have the same variable "y" raised to the first power.

2.) To simplify 2 + 17x - 5x + 9, you combine the like terms. In this expression, the like terms are 17x and -5x because they both have the same variable "x" raised to the first power. Adding these like terms give you 12x. So the simplified expression is 2 + 12x + 9.

3.) In the expression 3(5 = 6) - 4, you have an equation inside parentheses. To simplify this, you need to solve the equation inside the parentheses first. However, the equation 5 = 6 is not true, so there are no real solutions. Therefore, the expression cannot be simplified further. The simplified expression is 3(5 = 6) - 4.

4.) To factor 81 - 27p, you need to look for common factors. Both 81 and 27 have 9 as a common factor. So you can factor out 9 from both terms. When you factor out 9, you get 9(9 - 3p). Therefore, the factored form of 81 - 27p is 9(9 - 3p).