Question

[(72×a-80):2+2×124]:4=97





REPEDEEEEEEE

Answer 1

[(72×a-80):2+2×124]:4=97

[(72×a-80):2+2×124]=97×4

(72×a-80):2+2×124=388

(72×a-80):2 +248=388

(72×a-80):2=388-248

(72×a-80):2= 140

72×a-80=140×2

72×a-80=280

72×a=280+80

72×a=360

a=360÷72

a=5

Answer 2

(72*a-80):2+2*124=97*4
(72*a-80):2+248=388
(72*a-80):2=388-248
(72*a-80):2=140
72*a-80=140*2
72*a-80=280
72*a=280+80
72*a=360
a=360:72
a=5