Question

При каком значении x значение выражения 5*x+3*(x+9) равно 75?

Answer 1

Ответ:

х=6

Пошаговое объяснение:

5х+3х+27=75

5х+3х=75-27

8х=48

х=48\8

х=6

Answer 2

To find the value of x when the expression is equal to 75, you can set the expression equal to 75 and solve for x:

5x + 3(x + 9) = 75

First, distribute the 3 on the left side:

5x + 3x + 3*9 = 75

Now combine like terms:

8*x + 27 = 75

Next, isolate the term with x:

8*x = 75 - 27

8*x = 48

Finally, divide both sides by 8 to solve for x:

x = 48 / 8

x = 6

So, when x is equal to 6, the expression 5x + 3(x+9) is equal to 75.