Question

3Х-17=8Х-184(1.2Х-3.7) - 2.8 = 5.2Х​

Answer 1

Ответ:

1)3x-17=8x+18

3x-8x=17+18

-5x=18+17

-5x=35

x=-7

2)4(1,2x+3,7)-2,8=5,2x

4,8х+14,8-2,8=5,2х

12=5,2х-4,8х

12=0,4х

х=12:0,4

х=30

Answer 2

Let's solve the equation step by step:

1. Distribute the terms on the right side: $3x - 17 = 8x - 184(1.2x - 3.7) - 2.8$

   Distributing the terms inside the parentheses: $3x - 17 = 8x - 184 \cdot 1.2x + 184 \cdot 3.7 - 2.8$

   Simplify: $3x - 17 = 8x - 220.8x + 681.8 - 2.8$

   Combine like terms: $3x - 17 = -212.8x + 679$

2. Combine like terms: Add $212.8x$ to both sides: $3x + 212.8x - 17 = 679$

   Combine the x terms: $215.8x - 17 = 679$

3. Add 17 to both sides: $215.8x = 696$

4. Divide by 215.8: $x = \frac{696}{215.8}$

   Use a calculator to find the approximate value of $x$.

So, the solution to the equation is $x \approx 3.225$.