X + 8 = 22
X = 22 − 8
X = 14
X + 14 = 92
X = 92 − 14
X = 78
23 + x = 62
X = 62 − 23
X = 39
X + 8 = 22
X = 22 − 8
X = 14
X + 14 = 92
X = 92 − 14
X = 78
23 + x = 62
X = 62 − 23
X = 39
X + 24 = 76 | X + 38 = 59 | X + 62 = 84 | X + 22 = 87 |
X + 14 = 25 | X + 52 = 78 | X + 71 = 94 | X + 82 = 86 |
Tìm x, biết:
a) x : 4 = 8
b) 4 × x = 12 + 8
c) 30 : x = 14 + 16
Tìm x:
a) 28 – x = 16
34 – x = 9
34 – x = 15
b) x – 14 = 18
x + 20 = 36
17 – x = 8
Tìm x, biết:
x + 28 = 54
44 + x = 72
x – 38 = 62
98 - x = 19
Tìm x bt :
a / x + 28 = 62
b / x - 37 = 47
Tìm x, biết:
a) x × 5 = 50 – 15
b) x : 4 = 38 – 33
c) x + 356 = 414 + 62
d) x : 4 = 2 × 3
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26+27+28+29+30+31+32+33+34+35+36+37+38+39+40+41+42+43+44+45+46+47+48+49+50+51+52+53+54+56+57+58+59+60+61+62+63+64+65+66+67+68+69+70=?
Đặt rồi tính:
42 - 5 82 - 8
62 - 6 32 - 3
Đặt tính rồi tính
34 + 26 75 + 5
8 + 62 59 + 21