2(x - 1) = x + 10
x
=

x=12

Step-by-step explanation:

Do 2 multiplied by x to get 2x, then do 2*1 to get 2.  You then add 2 to each side to balance out the -2 on the left.  You then subtract 1x from each side to get rid of the x on the right.  This leaves you with x=12

2x-2=x+10

2x=x+12

x=12

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1