Question

Помогите найти корни уравнений:
361+(279+А)=917
286+(b+164)=871

Answer 1

361+(279+а)=917
640+а=917
а=917-640
а=277.
286+(b+164)=871
450+b=871
b=871-450
b=421

Answer 2

361 + (279 + A) = 917

A = 917 - (361 + 279) = 917 - 650 = 267
286 + (b + 164) = 871
b = 871 - (286 + 164) = 871 - 450 = 421