You can think in reverse. Addition is the opposite of subtraction. So to solve 15-8, you can ask "8 plus what number is equal to 15?" and note how 8+7 = 15. So that's why 15-8 = 7. Similarly, 15-7 = 8 can be solved the same way.
Answer:
-x + 4
Step-by-step explanation:
(4x + 3) - (5x - 1)
distribute the - into the (5x - 1)
4x + 3 - 5x + 1
combine like terms
-x + 4
Hope this Helps!!!
6*6-(3*3)-(2*2) is the answer
Answer:
Either one: the two line have a point in common, or infinite: they are the same line.
hope it helps u..........