Tìm X:

a) (x + 268) $x$ 137 = 48 498	b) ( x + 3 217) : 215 = 348
c) (x – 2 048) : 145 = 246	d) (2 043 – x) $x$ 84 = 132 552

a) (x + 268) $x$ 137 = 48 498

x + 268 = 48 948 : 137

x + 268 = 354

x = 354 – 268

x = 86

b) (x + 3 217) : 215 = 348

x + 3 217 = 348 $x$ 215

x + 3 217 = 74 820

x = 74 820 – 3 217

x = 71 603

c) (x – 2 048) : 145 = 246

x – 2 048 = 246 $x$ 145

x – 2 048 = 35 670

x = 35 670 + 2 048

x = 37 718

d) (2 043 – x) $x$ 84 = 132 552

2 043 – x = 132 552 : 84

2 043 – x = 1 578

x = 2 043 – 1 578

x = 465