Question

(120:х-3):2+5=11решить​

Answer 1

(120 : х - 3) : 2 + 5 = 11

(120 : х - 3) : 2  = 11 - 5

(120 : х - 3) : 2  = 6

(120 : х - 3) = 6 * 2

(120 : х - 3) = 12

120 : х = 12 + 3

120 : х = 15

х = 120 : 15

х = 8

Answer 2

To solve the equation, let's first rewrite it with proper formatting:

(120:2x - 3) + 5 = 11

Next, we'll isolate the variable on one side of the equation. Follow these steps:

Step 1: Eliminate the constant term on the left side by subtracting 5 from both sides:

(120:2x - 3) = 11 - 5

Step 2: Simplify the right side:

(120:2x - 3) = 6

Step 3: Now, eliminate the parenthesis on the left side by distributing the division:

120/(2x) - 3 = 6

Step 4: Add 3 to both sides to eliminate the -3:

120/(2x) = 6 + 3 120/(2x) = 9

Step 5: Invert both sides of the equation to solve for x:

2x/120 = 1/9

Step 6: Simplify the left side:

x/60 = 1/9

Step 7: Finally, solve for x by multiplying both sides by 60:

x = (1/9) * 60 x = 6.6666667

So, the solution to the equation is approximately x = 6.67.