What is five out of twelve plus seven out of eight minus nine out of twenty

What is five out of twelve plus seven out of eight minus nine out of twenty

5/12+7/8-9/20
=50/120+105/120-54/120
=101/120

If x + 2 + 2y-7 = 0, then x + y if a + B + B + 2 = 0, then a of B is equal to if x = - x, and x = 1 of X, then x=
If x ︱ 3 and X ︱ 1 / x, then x is an integer=
There are four questions

If x + 2 + 2y-7 = 0, then x + y = 1.5, if a + B + B + 2 = 0, then a of B is equal to - 1, if x = - x, and x = 1 of X, then x = - 1, if x < 3, and x > 1 of X, then integer x = 2, study hard!

If (| x | - 1) & # 178; + | 2Y + 1 | = 0, then x + y = if a and B are rational numbers that are not equal to 0, what is the result of a | a | fraction a + | B | fraction B

If (| x | - 1) & # 178; + | 2Y + 1 | = 0, then x + y=
|x|-1=0,2y+1=0
x=±1,y=-1/2
When x = - 1, x + y = - 3 / 2,
When x = 1, x + y = 1 / 2
If a and B are rational numbers that are not equal to 0, what is the result of | a | a + | B | B
When a > 0, b > 0: a + B = 2
When a