Question

A) 2 (x-5)=9;r) 1-5 (2-3x) = 6;x) 2x - (7 + x) = 2;​

Answer 1

Ответ:

2х-10=9

2х=9-10

2х=-1

×=0.5

1-10-15х=6

-15х=6-1+10

-15х=15

х=-1

14х-4х=2

10х=2

х=5

Answer 2

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Answer 3

Let's solve each equation step by step:

A) 2(x - 5) = 9

First, distribute the 2 to both terms inside the parentheses:

2x - 10 = 9

Next, add 10 to both sides to isolate the x term:

2x = 19

Finally, divide both sides by 2 to solve for x:

x = 19/2 = 9.5

So the solution for equation A is x = 9.5.

R) 1 - 5(2 - 3x) = 6

First, distribute the -5 to both terms inside the parentheses:

1 - 10 + 15x = 6

Combine like terms:

-9 + 15x = 6

Next, add 9 to both sides:

15x = 15

Finally, divide both sides by 15 to solve for x:

x = 15/15 = 1

So the solution for equation R is x = 1.

X) 2x - (7 + x) = 2

First, simplify the expression inside the parentheses:

2x - 7 - x = 2

Combine like terms:

x - 7 = 2

Next, add 7 to both sides:

x = 9

So the solution for equation X is x = 9.

To summarize:

• Equation A: x = 9.5
• Equation R: x = 1
• Equation X: x = 9