Question

2(3(4х-5)-10(2х-1)=66 х=????

Answer 1

Пошаговое объяснение:

2(3(4х - 5)) - 10(2х - 1) = 66

2(12х - 15) - 10(2х - 1) = 66

24х - 30 - 20х + 10 = 66

4х - 20 = 66

4х = 66 + 20

4х = 86

х = 86 : 4

х = 21,5

Answer 2

Let's solve the equation step by step:

2(3(4x - 5) - 10(2x - 1)) = 66

First, let's simplify the expression inside the parentheses:

2(12x - 15 - 20x + 10) = 66

Now, let's simplify further:

2(-8x - 5) = 66

Multiply 2 by -8x and -5:

-16x - 10 = 66

Now, let's isolate the variable x by moving -10 to the other side of the equation:

-16x = 66 + 10

-16x = 76

To solve for x, we divide both sides by -16:

x = 76 / -16

Simplifying the division:

x = -4.75

Therefore, the solution to the equation is x = -4.75.