Question

(5x+2x) •3+5=47пожалуйста

Answer 1

7x*3+5=47
21x=42
x=2
Ответ: 2

Answer 2

(5x + 2x) • 3 + 5 = 47
7x • 3 + 5 = 47
21x + 5 = 47
21x = 47 - 5
21x = 42
x = 42 ÷ 21
x = 2
Ответ: х = 2.

Answer 3

To solve this equation, we need to simplify the left-hand side first:

(5x + 2x) • 3 + 5 = 7x • 3 + 5 (combine the like terms inside the parentheses) = 21x + 5 (multiply 7x by 3)

Now we have the simplified equation:

21x + 5 = 47

To solve for x, we need to isolate the variable on one side of the equation. We can do this by subtracting 5 from both sides:

21x + 5 - 5 = 47 - 5 21x = 42

Then, we can divide both sides by 21:

x = 2

Therefore, the solution to the equation is x = 2.