Does it tell you what X represents?
x+142 =3x+64
subtract x from each side
142 = 2x+64
subtract 64 from each side
142-64 = 2x
78=2x
divide by 2
78/2 = x
x=39
The number is 39
Because when you simplify a fraction you divide the number on bottom be the top number to simplify the fraction and make it a mixed number
For number 12 the answer is 15.36
