Question

2(у-40-5(у+8)=12 решите уравнения дам много балов

Answer 1

$2(y - 4) - 5(y + 8) = 12 \\ 2y - 8 - 5y - 40 = 12 \\ - 3y - 12 = 12 \\ - y - 4 = 4 \\ - y = 8 \\ y = - 8$

Answer 2

Ответ:

180

Пошаговое объяснение:

2( у - 40 - 5 ( у + 8 )) = 12

2 ( у - 40 - 5у - 40) = 12

2у - 80 - 10у - 80 = 12

-8у = 172

у = 180

Answer 3

Sure, I'd be happy to help you solve the equation. Let's start by simplifying the equation step by step and then solve for the variable "у."

Given equation: 2(у - 40 - 5(у + 8)) = 12

Step 1: Distribute the 5 inside the parentheses: 2(у - 40 - 5у - 40) = 12

Step 2: Combine like terms: 2(у - 5у - 80) = 12

Step 3: Combine further: 2(-4у - 80) = 12

Step 4: Distribute the 2 outside the parentheses: -8у - 160 = 12

Step 5: Move the constant term to the other side of the equation by adding 160 to both sides: -8у = 12 + 160

Step 6: Add the constants: -8у = 172

Step 7: Solve for у by dividing both sides by -8: у = 172 / -8

Step 8: Simplify the fraction: у = -21.5

So, the solution to the equation is у = -21.5.