Question

4)3×(2x-7)=9 6)3×(x-5)=x+3​

Answer 1

Пошаговое объяснение:

3•(2х-7)=9 |3

2х-7=3

2х=3+7

х=10/2=5

3•(х-5)=х+3

3х-15=х+3

3х-х=3+15

2х=18

х=18/2=9

Answer 2

To solve the equations, let's go through each one step by step:

4. 3 × (2x - 7) = 9

Expand the parentheses:

6x - 21 = 9

Move the constant term to the other side by adding 21 to both sides:

6x = 30

Divide both sides by 6 to isolate x:

x = 5

So the solution to this equation is x = 5.

6. 3 × (x - 5) = x + 3

Expand the parentheses:

3x - 15 = x + 3

Move the constant term to the other side by adding 15 to both sides:

3x = x + 18

Subtract x from both sides to isolate x:

2x = 18

Divide both sides by 2:

x = 9

So the solution to this equation is x = 9.