Question

A) 13. (120+x)= 19636) 732 - 702 : (54 - x) = 65​

Answer 1

13 (120+х) =1963

120+х=1963:13

120+х=151

Х=151-120

Х=31

Ответ:х=31

732 - 702 : (54 - x) = 65

732- (702) / (54-х) = 65

- (702) / (54-х) =65-732

- (702) / (54-х) =-667

702= (54-х) *667

702=36 018-667х

667х=36018-702

667х=35316

Х=35316:667

Х=35316/667

Х≈52,94753

___________________

Удачи))

Answer 2

Ответ:

а) 13(120+х)=1963

120+х=1963:13

120+х=151

х=151-120

х=31

б) 732-702:(54-х)=65

702:(54-х)=732-65

702:(54-х)=667

Answer 3

To solve the equations, follow these steps:

A) $13(120 + x) = 19636$

Step 1: Distribute the 13 on the left side of the equation. $13 \times 120 + 13 \times x = 19636$

Step 2: Simplify. $1560 + 13x = 19636$

Step 3: Move the constant term to the other side of the equation. $13x = 19636 - 1560$

Step 4: Calculate the right-hand side. $13x = 18076$

Step 5: Isolate x by dividing both sides by 13. $x = \frac{18076}{13} \approx 1389.54$

So the value of $x$ in the first equation is approximately 1389.54.

B) $732 - 702 : (54 - x) = 65$

Step 1: Perform the division on the left side of the equation. $732 - \frac{702}{54 - x} = 65$

Step 2: To get rid of the fraction, multiply both sides by $54 - x$. $(732 - 702) \times (54 - x) = 65 \times (54 - x)$

Step 3: Simplify both sides. $30 \times (54 - x) = 65 \times 54 - 65x$

Step 4: Distribute on the left side. $30 \times 54 - 30x = 65 \times 54 - 65x$

Step 5: Move the $30x$ term to the right side of the equation. $30 \times 54 = 65 \times 54 - 65x + 30x$

Step 6: Combine like terms on the right side. $1620 = 65 \times 54 - 35x$

Step 7: Move the constant term to the left side. $1620 - 65 \times 54 = -35x$

Step 8: Calculate the left-hand side. $1620 - 3510 = -35x$

Step 9: Combine the constant terms on the left side. $-1890 = -35x$

Step 10: Isolate x by dividing both sides by -35. $x = \frac{-1890}{-35} = 54$

So the value of $x$ in the second equation is 54.