Question

2x-(x+10)=45 need help with this problem

Answer 1

What do you need to do with the equation? Solve for x?

Answer 2

removing the brackets gives 2x-x-10=45 as you were subtracting everything inside the bracket. this simplifies to x-10=45, and then adding 10 to both sides gives x=55

Answer 3

Another way of doing this is to add (x+10) to both sides to give
2x = 45 + (x+10)
2x = x +55
Then subtract x from both sides.
x = 55

Answer 4

answer to: 15x=3x+120 and: 3x+(x-8)(=120)

Answer 5

Combine all the x's into a single term. Do you know the commutative, distributive and associative laws?