Question

15х-4(3х+5)=7(2х+5)​

Answer 1

Ответ:

-5

Объяснение:

15x - 12x - 20=14x+35

15x-12x-14x=35+20

-11x=55

x=55:(-11)

x=-5

Answer 2

Ответ:

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Answer 3

To solve the equation, let's first simplify both sides by distributing and combining like terms. Follow these steps:

1. Distribute the constants outside the parentheses:
   • On the left side: -4 * (3x + 5) = -12x - 20
   • On the right side: 7 * (2x + 5) = 14x + 35

Now, the equation becomes:

15x - (12x + 20) = 14x + 35

2. Remove the parentheses by distributing the negative sign inside the parentheses on the left side:

15x - 12x - 20 = 14x + 35

3. Combine like terms:

(15x - 12x) - 20 = 14x + 35

3x - 20 = 14x + 35

4. Move all the terms with 'x' to one side of the equation and the constant terms to the other side:

3x - 14x = 35 + 20

-11x = 55

5. Finally, solve for 'x' by dividing both sides by -11:

x = 55 / -11

x = -5

So, the solution to the equation is x = -5.