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Okai entonces quedaría asi
1)x=-18
x=21-10-29
x=21-39
X=-18
2)A=6
A+30=22+14
A=36-30
A=6
3)B=26
B+30=42+14
B=56-30
B=26
4)X=85
103+x=18+170
X=188-103
X=85
x = 21 - 10 - 29
x = -18
2. (A+30)-14=22
A + 30 = 22 + 14
A = 36 - 30
A = 6
3. (B+30)-14=42
B + 30 = 42 + 14
B = 56 - 30
B = 26
4. (103+X)-170=18
103 + x = 18 + 170
x = 188 - 103
x = 85