Answer:
72
Step-by-step explanation:
21 + 62 - (35 - 8) x 3
1) Distributive Property
21 + 62 - (35 - 8) x 3
There's an invisible one. - 1(35 - 8)
21 + 62 -35 + 8 x 3
2) Multipilcation
21 + 62 -35 + 8 x 3
21 + 62 - 35 + 24
3) Solve from left to right
21 + 62 -35 + 24
83 -35 + 24
83 - 35 +24
48 + 24
48 +24
72