Question

12,4+8,3x+1,5x=39,94

Answer 1

12.4+8.3x+1.5x=39.94;
8.3x+1.5x=39.94-12.4;
9.8x=27.54;
x=1377/490;
x=2(целых) 397/490

Answer 2

To solve the equation 12.4 + 8.3x + 1.5x = 39.94, you need to combine like terms and isolate the variable x. Here's the step-by-step solution:

1. Combine the x terms: 8.3x + 1.5x = 9.8x

2. Rewrite the equation with the combined x term: 12.4 + 9.8x = 39.94

3. Isolate the variable x by subtracting 12.4 from both sides of the equation: 12.4 + 9.8x - 12.4 = 39.94 - 12.4 9.8x = 27.54

4. Finally, solve for x by dividing both sides by 9.8: x = 27.54 / 9.8 x ≈ 2.8143

So, the solution to the equation is x ≈ 2.8143.