1) 234 − y = 220
y = 234 − 220
y = 14
2) 72 : b + 13 = 19
72 : b = 19 − 13
72 : b = 6
b = 72 : 6
b = 12
1) x + 48 = 94
x = 94 − 48
x = 46
2) 234 + y = 452
y = 452 − 234
y = 218
3) x − 174 = 206
x = 206 + 174
x = 380
4) 378 − b = 165
b = 378 − 165
b = 213
1) 19x = 95
x = 95 : 19
x = 5
2) x · 22 = 132
x = 132 : 22
x = 6
3) 38x − 16x = 1474
22x = 1474
x = 1474 : 22
x = 67
4) y + 27y = 952
28y = 952
y = 952 : 28
y = 34
5) x : 25 = 16
x = 16 · 25
x = 400
6) 324 : x = 27
x = 324 : 27
x = 12