Question

22,4(5/16 x-3/7)-35,1(9/13x-4/9)=-45,9

Answer 1

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112/5 * 5/16 х - 112/5 * 3/7 - 351/10 * 9/13 х +351/10 * 4/9= - 45,9
7х - 48/5 - 243/10 х+78/5 = - 45,9
7х - 24,3х+6= -45,9
 - 17,3х= -51,9
х=51,9:17,3
х=3