Question

A) 5,9y+2,3y=27,88 b)8,7x-4,5x=10,5

Answer 1

5,9у + 2,3у = 27,88
8,2у = 27,88
у = 27,88:8,2
у = 3,4
Ответ: 3,4;

8,7х - 4,5х = 10,5
4,2 = 10,5
х = 10,5:4,2
х = 2,5
Ответ: 2,5.

Answer 2

To solve the given equations, we will combine like terms and isolate the variable on one side of the equation. Let's start with each equation:

A) 5.9y + 2.3y = 27.88

Step 1: Combine like terms on the left side: (5.9 + 2.3)y = 27.88 8.2y = 27.88

Step 2: Isolate y by dividing both sides by 8.2: y = 27.88 / 8.2 y ≈ 3.40

So the solution to equation A is y ≈ 3.40.

B) 8.7x - 4.5x = 10.5

Step 1: Combine like terms on the left side: (8.7 - 4.5)x = 10.5 4.2x = 10.5

Step 2: Isolate x by dividing both sides by 4.2: x = 10.5 / 4.2 x ≈ 2.50

So the solution to equation B is x ≈ 2.50.