Question

3) 26 - 4x = 3x - 7 (x-3);4) -2 (3 - 4x) + 5 (2 - 1,6x) =4​

Answer 1

а)26-4х=3х-7х+21 26-4х=-4х+21 26=21 б)-2(3-4х)+5(2-1,6х)=4 -6+8х+10-8х=4 4=4

Answer 2

It looks like you've provided two mathematical equations. I'll help you solve them one by one.

Equation 3: 26 - 4x = 3x - 7(x - 3)

Let's simplify the equation step by step:

Step 1: Distribute the -7 to both terms inside the parentheses:

26 - 4x = 3x - 7x + 21

Step 2: Combine like terms on the right side of the equation:

26 - 4x = -4x + 21

Step 3: Add 4x to both sides of the equation to isolate the constant term:

26 = 21

Since 26 does not equal 21, there's no solution to this equation. It seems there might have been a mistake in the equation or the provided values.

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Equation 4: -2(3 - 4x) + 5(2 - 1.6x) = 4

Let's solve this equation step by step:

Step 1: Distribute the coefficients to the terms inside the parentheses:

-6 + 8x + 10 - 8x = 4

Step 2: Combine like terms on both sides of the equation:

4 = 4

The equation is true, which means that it holds for all values of x. In this case, there isn't a single unique solution for x since any value of x satisfies the equation.

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In summary, for Equation 3, there doesn't seem to be a valid solution, and for Equation 4, the equation is true for all values of x. If you have any further questions or need additional assistance, feel free to ask!