Question

Решите уравнение 3,7а+-15+4,1а=89,1 помогитеееее

Answer 1

To solve the equation 3.7a - 15 + 4.1a = 89.1, we can start by combining like terms on the left side of the equation.

Combining the terms with 'a', we get:

3.7a + 4.1a - 15 = 89.1

Adding the coefficients of 'a', we have:

8.8a - 15 = 89.1

Next, we can isolate the variable 'a' by moving the constant term (-15) to the right side of the equation. To do this, we can add 15 to both sides:

8.8a = 89.1 + 15

Simplifying the right side of the equation, we get:

8.8a = 104.1

Finally, to solve for 'a', we divide both sides of the equation by 8.8:

a = 104.1 / 8.8

Calculating the division, we find:

a ≈ 11.84

Therefore, the solution to the equation 3.7a - 15 + 4.1a = 89.1 is approximately a = 11.84.

Please note that the solution is rounded to two decimal places.