Question

-9 ×-9(4-×)=3 + 3. 5× - 6 (5 + 2×) = × - 2

Answer 1

Ответ:

Пошаговое объяснение:

-9 ×-9(4-×)=3 + 3.

-9х-36+9х=6

-9х+9х=6+36

0х=42

х=решений нет

5× - 6 (5 + 2×) = × - 2

5х-30-12х=х-2

5х-12х-х=-2+30

-8х=28

х=28:(-8)

х=-3.5

Answer 2

It seems like the equation you provided contains some missing information and unclear symbols. I'll do my best to interpret and solve it, but please provide the correct equation if there are any mistakes in my understanding.

Let's try to interpret the equation step by step:

1. -9 × -9(4 - ×) = 3 + 3.5× - 6(5 + 2×)

Step 1: Distribute the -9 on the left side of the equation: -9 × -9(4 - ×) = 3 + 3.5× - 6(5 + 2×) 81(4 - ×) = 3 + 3.5× - 6(5 + 2×)

Step 2: Expand the parentheses on the right side of the equation: 81(4 - ×) = 3 + 3.5× - 30 - 12×

Step 3: Combine like terms on the right side of the equation: 81(4 - ×) = 3 - 30 + 3.5× - 12×

Step 4: Simplify the right side further: 81(4 - ×) = -27 + 3.5× - 12×

Now, we'll move to the second equation:

2. 5× - 6(5 + 2×) = × - 2

Step 1: Distribute the -6 on the left side of the equation: 5× - 6(5 + 2×) = × - 2 5× - 30 - 12× = × - 2

Step 2: Combine like terms on the left side of the equation: -7× - 30 = × - 2

Step 3: Move × to one side of the equation and constants to the other side: -7× - × = 2 - 30 -8× = -28

Step 4: Solve for ×: × = -28 / -8 × = 3.5

So, the value of × in both equations is 3.5. Substituting × with 3.5 in either equation would make both sides equal.