Heather W. answered 08/27/20
Austin musician and mathematician, making math fun and easy!
3x - 2 + 4x + 1 = 83 AB + BC = AC
(3x + 4x) + (-2 + 1) = 83 GROUP LIKE TERMS TOGETHER
7x - 1 = 83 ADD LIKE TERMS
7x = 84 ADD 1 TO BOTH SIDES
x = 12 DIVIDE BY 7