Question

(24:3*5:4*7+3*6:2*5)-a=(63-54)*4:6*7+2*4*5

Answer 1

(8x5:4x7+18:2x5)-a=9x4;6x7+8x5
(40:4x7+9x5)-a=36:6x7+40
(10x7+45)-a=6x7+40
(70+45)-a=42+40
115-a=82
a=115-82
a=33

Answer 2

(24:3*5:4*7+3*6:2*5)-a=(63-54)*4:6*7+2*4*5
(24:3*5:4*7+3*6:2*5)-a=9*4:6*7+2*4*5
(24:3*5:4*7+3*6:2*5)-a=36:6*7+2*4*5
(24:3*5:4*7+3*6:2*5)-a=6*7+2*4*5
(24:3*5:4*7+3*6:2*5)-a=42+2*4*5
(24:3*5:4*7+3*6:2*5)-a=42+8*5
(24:3*5:4*7+3*6:2*5)-a=42+40
(24:3*5:4*7+3*6:2*5)-a=82
(8*5:4*7+3*6:2*5)-a=82
(40:4*7+3*6:2*5)-a=82
(10*7+3*6:2*5)-a=82
(70+3*6:2*5)-a=82
(70+18:2*5)-a=82
(70+9*5)-a=82
(70+45)-a=82
115-a=82
a=115-82
a=33
V:115-33=82