Question

1.38 ÷ x + 5.7 = 12.6

Answer 1

1.38:х+5.7=12.6

1.38:х=12.6-5.7

1.38:х=6.9

х=1.38:6.9

х=0.2

Answer 2

To solve the equation 1.38 ÷ x + 5.7 = 12.6 for x, follow these steps:

Step 1: Isolate the term containing x on one side of the equation. In this case, we want to get rid of the 5.7 on the left side, so subtract 5.7 from both sides of the equation:

1.38 ÷ x + 5.7 - 5.7 = 12.6 - 5.7

Step 2: Simplify both sides:

1.38 ÷ x = 6.9

Step 3: Now, isolate x by getting rid of the division. To do this, multiply both sides of the equation by x:

x * (1.38 ÷ x) = x * 6.9

Step 4: On the left side, the x and the division will cancel out, leaving:

1.38 = 6.9x

Step 5: To solve for x, divide both sides by 6.9:

x = 1.38 / 6.9

Step 6: Calculate the value of x:

x = 0.2

So the solution to the equation is x = 0.2.