Question

8,1-(3,1-y)=1 9,4+(8,7-x)=0,1

Answer 1

Ответ:

х=18, y=-4

Пошаговое объяснение:

8,1-(3,1-y)=1

8,1-3,1+y=1

y=1-8,1+3,1

y=1-5

y=-4

9,4+(8,7-х)=0,1

9,4+8,7-х=0,1

18,1-х=0,1

-х=0,1-18,1

-х=-18

х=18

Answer 2

To solve the equations, let's break them down step by step:

1. Solve the first equation: 8.1 - (3.1 - y) = 1

Step 1: Simplify the expression inside the parentheses. 3.1 - y = 3.1 - y

Step 2: Substitute the simplified expression back into the main equation. 8.1 - (3.1 - y) = 8.1 - 3.1 + y

Step 3: Simplify further. 8.1 - 3.1 = 5 5 + y = 1

Step 4: Solve for y. y = 1 - 5 y = -4

So the solution for the first equation is y = -4.

2. Solve the second equation: 9.4 + (8.7 - x) = 0.1

Step 1: Simplify the expression inside the parentheses. 8.7 - x = 8.7 - x

Step 2: Substitute the simplified expression back into the main equation. 9.4 + (8.7 - x) = 9.4 + 8.7 - x

Step 3: Simplify further. 9.4 + 8.7 = 18.1 18.1 - x = 0.1

Step 4: Solve for x. x = 18.1 - 0.1 x = 18

So the solution for the second equation is x = 18.

The solutions for the given equations are: y = -4 x = 18