Question

1,4(3-х)-0,9(х+2)=4,7

Answer 1

4,2-1,4x-0,9x-1,8=4,7
2,4-2,3x=4,7
-2,3x=-2,4+4,7
-2,3x=2,3
x=-1

Answer 2

1,4(3-х)-0,9(х+2)=4,74,2-1,4х-0,9х-2,8=4,7
-1,4х-0,9х=4,7-2,8-4,2
2,3х=-2,3
х=-1

Answer 3

To solve the equation 1,4(3-x) - 0,9(x+2) = 4,7, we can follow these steps:

1. Distribute the coefficients inside the parentheses: 4,2 - 1,4x - 0,9x - 1,8 = 4,7

2. Combine like terms on the left side of the equation: 4,2 - 2,3x - 1,8 = 4,7

3. Simplify the expression: 2,4 - 2,3x = 4,7

4. Move the constant term to the right side by subtracting 2,4 from both sides: -2,3x = 4,7 - 2,4

   This simplifies to: -2,3x = 2,3

5. Solve for x by dividing both sides by -2,3: x = 2,3 / -2,3

   The solution is: x = -1

Therefore, the value of x that satisfies the equation 1,4(3-x) - 0,9(x+2) = 4,7 is x = -1.