Question

4/9(0,36-4,5х)-5/7(0,21-1,4х)=-1

Answer 1

Ответ:

Х=1.01

Пошаговое объяснение:

4/9(0,36-4,5х)-5/7(0,21-1,4х)=-1

0.16-2х-0.15+х=-1

-х=-1-0.16+0.15

-х=-1.01. / * - 1

Х=1.01

Answer 2

Ответ:   $x=1,01$

Пошаговое объяснение:

$\frac{4}{9} (0,36-4,5x)-\frac{5}{7} (0,21-1,4x)=-1;\\\\\frac{4* 0,36}{9}-\frac{4*4,5x}{9}-\frac{5*0,21}{7} +\frac{5*1,4x}{7})=-1;\\4*0,04-4*0,5x-5*0,03+5*0,2x=-1;\\0,16-2x-0,15+x=-1;\\-x=-1-0,01;\\x=1,01.$

Answer 3

To solve the equation $\frac{4}{9}(0.36-4.5x) - \frac{5}{7}(0.21-1.4x) = -1$, you can follow these steps:

Step 1: Distribute the fractions on both sides of the equation to eliminate them.

$\frac{4}{9} \cdot 0.36 - \frac{4}{9} \cdot 4.5x - \frac{5}{7} \cdot 0.21 + \frac{5}{7} \cdot 1.4x = -1$

Step 2: Perform the multiplications within each term.

$\frac{4}{9} \cdot 0.36 = 0.16$ $\frac{4}{9} \cdot 4.5x = 2x \cdot \frac{4}{9} = \frac{8}{9}x$ $\frac{5}{7} \cdot 0.21 = 0.15$ $\frac{5}{7} \cdot 1.4x = 0.2x \cdot 5 = x$

Now the equation becomes:

$0.16 - \frac{8}{9}x - 0.15 + x = -1$

Step 3: Combine like terms on the left side of the equation.

$0.16 - 0.15 - \frac{8}{9}x + x = -1$

$0.01 - \frac{8}{9}x + x = -1$

Step 4: Combine the $x$ terms.

$-\frac{8}{9}x + x = -1 - 0.01$

$\frac{1}{9}x = -1 - 0.01$

Step 5: Subtract 0.01 from -1.

$\frac{1}{9}x = -1.01$

Step 6: To isolate $x$, multiply both sides of the equation by 9.

$x = -1.01 \times 9$

$x = -9.09$

So, the solution to the equation is $x = -9.09$.