Question

determinar el valor de
a)$A) 15- \left \{ 6- [7*3+2*5+(3-3*5)]} \left\}. B) 12- \left \{12+[7*4+2-(4+4*3)]} \left\}$

Answer 1

a)
15-{6-[7*3+2*5+(3-3*5)]}
15-{6-[7*3+2*5+(3-15)]}
15-{6-[7*3+2*5+-12]}
15-{6-[7*3+2*5-12]}
15-{6-[21+10-12]}
15-{6-[31-12]}
15-{6-19}
15-{-13}
a = 28

b) 12-{12+[7 * 4 + 2 -(4+4*3)]}
12-{12+[7 * 4 + 2 -(4+12)]}
12-{12+[7 * 4 + 2 -16]}
12-{12+[28 + 2 -16]}
12-{12+[28 -14]}
12-{12+14}
12-26
= -14

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