Son 18 Practice Problems For each expression, write an equivalent expression that uses only addition.
a. 20 - 9+8-7
b. 4x - 7y - 5z + 6
C.
6.-3x – 8y - 4 - 2 / 2

Rick is driving to his uncles house in greenville,which is 120 miles from ricks town .after covering x miles rick she's a sign stating that greensville is 20 miles away. which equation when solved will give the value of x. a: x+120 = 20 b: x x120 =20 c: x +20 equals 120 d: x x20= 120