2. Решите уравнение: а) 8у-у+15=64; в) 32(х+14)=736.

Ответ:

1. а) $$8y - y + 15 = 64$$ $$7y = 64 - 15$$ $$7y = 49$$ $$y = \frac{49}{7}$$ $$y = 7$$
2. б) $$32(x + 14) = 736$$ $$32x + 448 = 736$$ $$32x = 736 - 448$$ $$32x = 288$$ $$x = \frac{288}{32}$$ $$x = 9$$