Question

А) 7х + 30 = 19х – 6; б) 9х – 7 = 6х + 14; в) 16х -3 = 8х – 43. помогите пожалуйста

Answer 1

ответ в приложении. желаю успехов в учёбе :)

Answer 2

Ответ:

а) 3

б)7

в) -5

Пошаговое объяснение:

Тому що ти повинен перенести всі х в одну сторону, а числа в іншу, но не забувай потім міняти знак на протилежний

Answer 3

Task Analysis

The user has provided three equations and is seeking help in solving them. Let's solve each equation step by step.

Equation A: 7x + 30 = 19x - 6

To solve this equation, we need to isolate the variable x on one side of the equation. Here's how we can do it:

1. Subtract 7x from both sides of the equation: 7x + 30 - 7x = 19x - 6 - 7x Simplifying, we get: 30 = 12x - 6

2. Add 6 to both sides of the equation: 30 + 6 = 12x - 6 + 6 Simplifying, we get: 36 = 12x

3. Divide both sides of the equation by 12: 36/12 = 12x/12 Simplifying, we get: 3 = x

Therefore, the solution to equation A is x = 3.

Equation B: 9x - 7 = 6x + 14

To solve this equation, we need to isolate the variable x on one side of the equation. Here's how we can do it:

1. Subtract 6x from both sides of the equation: 9x - 7 - 6x = 6x + 14 - 6x Simplifying, we get: 3x - 7 = 14

2. Add 7 to both sides of the equation: 3x - 7 + 7 = 14 + 7 Simplifying, we get: 3x = 21

3. Divide both sides of the equation by 3: (3x)/3 = 21/3 Simplifying, we get: x = 7

Therefore, the solution to equation B is x = 7.

Equation C: 16x - 3 = 8x - 43

To solve this equation, we need to isolate the variable x on one side of the equation. Here's how we can do it:

1. Subtract 8x from both sides of the equation: 16x - 3 - 8x = 8x - 43 - 8x Simplifying, we get: 8x - 3 = -43

2. Add 3 to both sides of the equation: 8x - 3 + 3 = -43 + 3 Simplifying, we get: 8x = -40

3. Divide both sides of the equation by 8: (8x)/8 = -40/8 Simplifying, we get: x = -5

Therefore, the solution to equation C is x = -5.

I hope this helps! Let me know if you have any further questions.