Question

Afla termenul necunoscut .a+1050=1973-97 a-1200=6588 1000-a=915 2000-a=109 a+(119+1000)=10000 a-310-1250=842 10000-a-6514=1001 a+959=1030. 90000+a-8320=2680 6000-a=1259+63.

Answer 1

a+1050=1876;a=1876-1050;a=826;P:826+1050=1876;a-1200=6588;a=6588+1200;a=7788;P:7788-1200=6588;1000-a=915;a=1000-915;a=85;P:1000-85=915;2000-a=109;a=2000-109;a=1891;P:2000-1891=109;a+(119+1000)=10000;a+1119=10000;a=10000-1119;a=8881;P:8881+1119=10000;