6r+70=-2(35+3r)
multiply the bracket by -2
(-2)(35)=-70
(-2)(3r)=-6r
6r+70=-70-6r
move -70 to the left side
sign changes from -70 to +70
6r+70-70=-70-70-6r
6r=-70-70-6r
move-6r to the left side
6r=-140-6r
move -6r to the other side
6r+6r=-140-6r+6r
12r=-140
divide both sides by 12
12r/12=-140/12
r=-140/12
reduce- by dividing by 4
-140/4=-35
12/4=3
Answer:
r= -35/3 and r=-11 2/3
Answer:
y = x - 10
Step-by-step explanation:
10 less than a number is the same as 10 subtracted from the number.
If you start with 30, 10 less than 30 is the same as 10 subtracted from 30.
30 - 10 = 20. The input is 30, and the output is 20, which is 10 less than 30.
If you start with x, 10 less than x is the same as 10 subtracted from x, or x - 10. The input is x. Subtract 10 from the input, or x - 10. The output equals x - 10.
y = x - 10
It's pretty simple to understand basically like the addition one 3 and 4 would be considered factors and in multiplication instead of saying sum you say product
So that means 12 is the product.
Hope this helped - Ashlynn
Answer:
B
Step-by-step explanation:
You are combining like terms.
1.) find all of the #x³ and there is only one and that is -x³ so that limits the problem to B or D.
2.) now you find all of the #x² and there are three of them being 10x², -x², and 4x². Now that you have identified them you will add them together to get a sum of 13x²
you don't have to do anymore of the question because D does not have 13x² so it is B.
