[ 2. ( 70 - x ) + 72 ]: 2 =46
2. ( 70 - x ) + 72 = 46.2
2. ( 70 - x ) + 72 = 92
2. ( 70 - x ) =92-72
2. ( 70 - x ) =20
70-x=20:2
70-x=10
x=70-10
x=60
[ ( 2.x + 54 ) - 32 ] . 2 = 244
( 2.x + 54 ) - 32 = 244:2
( 2.x + 54 ) - 32 = 122
2.x + 54 = 122+32
2.x + 54 = 154
2.x =154-54
2x=100
x=100:2
x=50