Question

-1.1(3у+6)=12.1 с проверкой

Answer 1

Ответ:

12.1

Пошаговое объяснение:

Раскроем скобки:

-3.3у-6.6=12.1

-3.3у=18.7

у=18.7/(-3.3)

у=-187/33

у=-5 22/33

y=-5 2/3

ПРОВЕРКА:

-3.3*(-5 2/3) -6.6 = 18.7 - 6.6 = 12.1

Answer 2

To solve the equation -1.1(3у + 6) = 12.1, we'll start by distributing -1.1 to the terms inside the parentheses:

-1.1 * 3у - 1.1 * 6 = 12.1

Simplifying further:

-3.3у - 6.6 = 12.1

Next, let's isolate the variable у by moving the constant term to the other side of the equation:

-3.3у = 12.1 + 6.6

-3.3у = 18.7

Now, divide both sides of the equation by -3.3 to solve for у:

у = 18.7 / -3.3

у ≈ -5.6667

To verify the solution, substitute this value of у back into the original equation and check if both sides are equal:

Left-hand side (LHS): -1.1(3у + 6) = -1.1(3 * (-5.6667) + 6) ≈ -1.1(-17.0001 + 6) ≈ -1.1(-11.0001) ≈ 12.10011

Right-hand side (RHS): 12.1

Since the LHS is approximately equal to the RHS, the solution у ≈ -5.6667 is verified.