Question

0.5(4+x)-0.4(x-3)=2.5

Answer 1

Ответ:

x=17

Пошаговое объяснение:

0,5(4+x)-0,4(x-3)=2.5

2+0.5x-0.4x-1.2=2.5

0.5x-0.4x=2.5-2+1.2

0.1x=1.7

Значит:

x=17

Answer 2

To solve the equation, let's follow these steps:

Step 1: Distribute the constants and coefficients: 0.5(4+x) - 0.4(x-3) = 2.5 2 + 0.5x - 0.4x + 1.2 = 2.5

Step 2: Combine like terms: (0.5x - 0.4x) + (2 + 1.2) = 2.5 0.1x + 3.2 = 2.5

Step 3: Subtract 3.2 from both sides of the equation: 0.1x = 2.5 - 3.2 0.1x = -0.7

Step 4: Divide by 0.1: x = -0.7 / 0.1 x = -7

So, the solution to the equation is x = -7.