Question

3,6 х + 8,4 х = 76,8​

Answer 1

$3.6x + 8.4x = 76.8 \\ 12x = 76.8 \\ x = 76.8 \div 12 \\ x = 6.4$

Answer 2

3,6 х + 8,4 х = 76,8

12х=76.8

х=6.4

Answer 3

To solve the equation 3.6x + 8.4x = 76.8, we can combine the like terms on the left side of the equation:

3.6x + 8.4x = 76.8

(3.6 + 8.4)x = 76.8

12x = 76.8

To isolate x, we divide both sides of the equation by 12:

12x/12 = 76.8/12

x = 6.4

Therefore, the solution to the equation is x = 6.4.