145-10x=10x-35
Add 35 to both sides.
175-10x=10x
Add 10x to both sides.
175=20x
Divide both sides by 20
8.75=x
Somebody can estimate the length of a book by using a ruler and rounding it to the nearest whole number.
I believe the answer is N+14=72
Answer:
when you simplify 600:450 to the smallest it can be, its 4:3. For proof, multiply 4:3 by 150. 4 times 150 is 600 and 3 times 150 is 450.
3 because 4×3=12 and if you divide12÷3/4 it helps you check
