Question

1) 13х+15х-24=602) 18у-7у-10=123) (х-12)×8=564) 24×(х+9)=2885) 9х+4=48-2х​

Answer 1

Ответ:

1) x=3

2)y=2

3)x=19

4)x=3

5)x=4

Answer 2

Let's solve each of these equations step by step:

1. 13x + 15x - 24 = 60

Combine like terms on the left side:

28x - 24 = 60

Add 24 to both sides:

28x = 84

Divide both sides by 28:

x = 84 / 28 x = 3

So, the solution to this equation is x = 3.

2. 18y - 7y - 10 = 12

Combine like terms on the left side:

11y - 10 = 12

Add 10 to both sides:

11y = 22

Divide both sides by 11:

y = 22 / 11 y = 2

So, the solution to this equation is y = 2.

3. (x - 12) × 8 = 56

First, distribute the 8 on the left side:

8x - 96 = 56

Add 96 to both sides:

8x = 56 + 96 8x = 152

Divide both sides by 8:

x = 152 / 8 x = 19

So, the solution to this equation is x = 19.

4. 24 × (x + 9) = 288

Divide both sides by 24:

x + 9 = 288 / 24 x + 9 = 12

Subtract 9 from both sides:

x = 12 - 9 x = 3

So, the solution to this equation is x = 3.

5. 9x + 4 = 48 - 2x

Add 2x to both sides:

9x + 2x + 4 = 48

Combine like terms on the left side:

11x + 4 = 48

Subtract 4 from both sides:

11x = 48 - 4 11x = 44

Divide both sides by 11:

x = 44 / 11 x = 4

So, the solution to this equation is x = 4.