Question

(39,8-х):4,5=6,4. (х+2,3):6,7=8,4

Answer 1

Ответ:

Пошаговое объяснение:

(39,8-×)=6,4*4.5

39.8-×=28,8

×=39.8-28.8

×=11

(×+2,3)=56,28

Х=56.28-2.3

Х=53.98

Answer 2

To solve the equations, let's go step by step:

Equation 1: (39.8 - x) / 4.5 = 6.4

Multiply both sides of the equation by 4.5 to eliminate the fraction: 39.8 - x = 6.4 * 4.5

Simplify the right side of the equation: 39.8 - x = 28.8

Subtract 39.8 from both sides to isolate the variable: 39.8 - 39.8 - x = 28.8 - 39.8

Simplify: -x = -11

Multiply both sides of the equation by -1 to solve for x: x = 11

Equation 2: (x + 2.3) / 6.7 = 8.4

Multiply both sides of the equation by 6.7 to eliminate the fraction: x + 2.3 = 8.4 * 6.7

Simplify the right side of the equation: x + 2.3 = 56.28

Subtract 2.3 from both sides to isolate the variable: x + 2.3 - 2.3 = 56.28 - 2.3

Simplify: x = 53.98

So, the solutions to the equations are: x = 11 x = 53.98