Question

A) 38 + x = 51; 6) 2x + 3 - x = 15;B) 75 - y = 28;r) 7 + 3y + 2y – 1 = 46; решите уравнение​

Answer 1

Решение данного задания представлено в прикреплённой фотографии

Answer 2

Ответ:

1)х=57-38

Х=19

2)3х=15-3

Х=4

3)-у=28-75

У=47

4)5у=46-7+1

У=8

Answer 3

A) 38 + x = 51 To solve this equation, we need to isolate the variable x on one side of the equation.

Step 1: Subtract 38 from both sides of the equation. 38 + x - 38 = 51 - 38 x = 13

Therefore, the solution to the equation is x = 13.

B) 75 - y = 28 To solve this equation, we need to isolate the variable y on one side of the equation.

Step 1: Subtract 75 from both sides of the equation. 75 - y - 75 = 28 - 75 -y = -47

Step 2: Multiply both sides of the equation by -1 to solve for y. (-1)(-y) = (-1)(-47) y = 47

Therefore, the solution to the equation is y = 47.

C) 7 + 3y + 2y – 1 = 46 To solve this equation, we need to combine like terms and isolate the variable y on one side of the equation.

Step 1: Combine like terms. 7 + 3y + 2y - 1 = 46 5y + 6 = 46

Step 2: Subtract 6 from both sides of the equation. 5y + 6 - 6 = 46 - 6 5y = 40

Step 3: Divide both sides of the equation by 5 to solve for y. (1/5)(5y) = (1/5)(40) y = 8

Therefore, the solution to the equation is y = 8.