4,15×+2 1,3 = 7. 8,15

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To solve this equation, we need to simplify the left side first by combining like terms:

4.15x + 2.1 = 7.8

Now, we can multiply the coefficients with the decimals:

62x + 2 = 7.8

Now, let's isolate x:

62x = 7.8 - 2
62x = 5.8

Now, divide by 62 to solve for x:

x = 5.8 / 62
x ≈ 0.0935

Therefore, the solution to the equation is x ≈ 0.0935.