Question

-4(2,5x-7)+17 решите плиз -2(1,1x+4)+4(1,5x+9)=

Answer 1

-4(2,5x-7)+17
-10x+28+17
-10x=45
x=45/(-10)
x=-4.5

Answer 2

To solve the equation -4(2.5x - 7) + 17 - 2(1.1x + 4) + 4(1.5x + 9) = 0, we'll follow the steps below:

Step 1: Simplify the equation by distributing the numbers outside the parentheses: -4 * 2.5x + (-4) * (-7) + 17 - 2 * 1.1x - 2 * 4 + 4 * 1.5x + 4 * 9 = 0

Simplifying further: -10x + 28 + 17 - 2.2x - 8 + 6x + 36 = 0

Step 2: Combine like terms on both sides of the equation: -10x - 2.2x + 6x + 28 + 17 - 8 + 36 = 0

Simplifying further: -5.2x + 75 = 0

Step 3: Move the constant term (75) to the right side of the equation by subtracting it from both sides: -5.2x = -75

Step 4: Solve for x by dividing both sides of the equation by -5.2: x = -75 / -5.2

Simplifying further: x ≈ 14.42

Therefore, the solution to the equation is x ≈ 14.42.