Question

14*(2x-3)-5*(x+4)=-2*(-3x*5)+5x

Answer 1

14(2х-3)-5(х+4)=2(3х+5)+5х
28х-42-5х+20=6х+10+5х
23х-42+20=11х+10
23х-11х=10+62
12х=72
х=6
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14(12-3)-5(6+4)=2(18+5)+30
76=76
ответ:х=6

Answer 2

28x-42-5x-20=6x+10+5x
28x-5x-6x-5x=10+42+20
12x=72
x=72/12=6

Answer 3

To solve the given equation, let's simplify and solve step by step:

Starting with the left side of the equation:

14 * (2x - 3) - 5 * (x + 4)

We can use the distributive property to expand the multiplication:

= 14 * 2x - 14 * 3 - 5 * x - 5 * 4

= 28x - 42 - 5x - 20

Combining like terms:

= (28x - 5x) + (-42 - 20)

= 23x - 62

Now let's simplify the right side of the equation:

-2 * (-3x * 5) + 5x

Applying the multiplication inside the parentheses:

= -2 * (-15x) + 5x

Multiplying -2 and -15x:

= 30x + 5x

= 35x

Now we have:

23x - 62 = 35x

To solve for x, we'll isolate the x terms on one side and the constant terms on the other side.

Subtracting 23x from both sides:

23x - 23x - 62 = 35x - 23x

Simplifying:

-62 = 12x

Dividing both sides by 12:

-62/12 = x

Simplifying the fraction:

x ≈ -5.17

So the solution to the equation is approximately x ≈ -5.17.