First, you combine like terms. I would start by circling the term and the sign in front of it. (A term is a piece separated by an addition/subtraction sign.) You can only combine terms with the same variable. 4.8a-2.1a-6.3b+7b is the same as your equation, just rearranged. Then, subtract (4.8a-2.1a) which is 2.7a. Add (-6.3b to 7b) The answer is 0.7b. If you have any questions, you can message me!
Answer:
D is the right one
Step-by-step explanation:
π radian = 180 degree
-> 135 degree =
π radian
-> 135 degree = 0.75 * π radians = 3π/4 radian
Answer:
Step-by-step explanation:
(7y)² = 7²×y² = 49y²
-(x-20)
Basically it’s the same as your other question but your not adding twenty!