Answer:
2x+3
Step-by-step explanation:
Since her brother is m years old, you would have to multiply her brother's age by 2 since the question says "...twice here brother's age." This part would equal to the equation 2x. The question also says " ...3 years more..." This would change the equation with the addtion of 3. The completed problem would then be 2x+3. Hope this helped!
B, because 10 is a multiple of 5, so anything divided by 10 could be divided by 5 (sort of how any even number can be divided by 2)
Answer:
1.) ???
2.) (2x+3y)(2x-3y)=4x²-9y²
Ok, I cant see the image because I'm on a school laptop but I can tell you that if there are infinite solutions you will sbasically see one line on the other . the simple definition of a solution is just the point that the two or more lines all cross. so look at it and see howmany intercecting points there are.
