Question

A+A+A=30, A+B+B=20, B+2C=13, A+B×C=?​

Answer 1

A+A+A=30 30:3=10 значит одна А-10
10+В+В=20 20-10=10 10:2=5 одна В-5
5+2С=13 13-5=8 8:2=4 одна С-4
А+В*С=10+5*4=60
Ответ: 60

Answer 2

Let's solve the given equations step by step to find the value of A, B, and C, and then we can calculate the value of A+B×C.

1. A + A + A = 30 3A = 30 A = 10

2. A + B + B = 20 10 + 2B = 20 2B = 10 B = 5

3. B + 2C = 13 5 + 2C = 13 2C = 8 C = 4

Now that we have the values of A, B, and C, we can calculate A + B × C:

A + B × C = 10 + 5 × 4 = 10 + 20 = 30

So, A + B × C equals 30.