Question

A:5+3*6=48 (2+a:7)*7=63 (780-a*60):2=210

Answer 1

Ответ:

Пошаговое объяснение:

Answer 2

Let's break down each equation to see if the results match your provided answers:

1. A: 5 + 3 * 6 = 48 5 + 18 = 48 23 = 48 (This equation is not correct. The result is 23, not 48.)

2. (2 + A: 7) * 7 = 63 (2 + 7) * 7 = 63 9 * 7 = 63 63 = 63 (This equation is correct.)

3. (780 - A * 60) / 2 = 210 (780 - A * 60) / 2 = 210 (780 - 60A) / 2 = 210

Now, let's solve for A:

(780 - 60A) / 2 = 210

Multiply both sides by 2 to isolate (780 - 60A):

780 - 60A = 420

Subtract 780 from both sides:

-60A = 420 - 780 -60A = -360

Now, divide both sides by -60 to solve for A:

A = (-360) / (-60) A = 6

So, the correct value of A is 6, not 7 as in your equation. Therefore, only the second equation is correct.