Question

19,6 +(3-x) = 12,6X+1,5=2,818,1-x=4,612,7-(X+3)=9x-7,6=8,5​

Answer 1

Ответ:

19,6 +(3-x) = 12,6

19,6+3-х=12,6

-х=12,6-19,6-3

-х=-10

х=10

X+1,5=2,8

х=2,8-1,5

х=1,3

18,1-x=4,6

-х=4,6-18,1

-х=-13,5

х=13,5

12,7-(X+3)=9

12,7-х-3=9

-х=9-12,7+3

-х=-0,7

х=0,7

x-7,6=8,5

х=8,5+7,6

х=16,1

Если понравился ответ, выбери его “Лучшим ответом”

Answer 2

It looks like you've provided a series of equations. Let's go through each one step by step and solve for the variable 'x' in each equation.

1. $19.6 + (3 - x) = 12.6$ Start by simplifying the left side: $19.6 + 3 - x = 12.6$ $22.6 - x = 12.6$ Now, subtract 22.6 from both sides: $-x = -10$ Multiply both sides by -1: $x = 10$

2. $1.5X + 2 = 818.1$ Subtract 2 from both sides: $1.5X = 816.1$ Divide both sides by 1.5: $X = 544.07$

3. $-x = 4.6$ Multiply both sides by -1: $x = -4.6$

4. $12.7 - (X + 3) = 9x - 7.6$ Distribute the negative sign: $12.7 - X - 3 = 9x - 7.6$ $9.7 - X = 9x - 7.6$ Add X to both sides: $9.7 = 10x - 7.6$ Add 7.6 to both sides: $17.3 = 10x$ Divide by 10: $x = 1.73$

5. $8.5 = 8.5$ This equation doesn't have a variable, so there's no need to solve for anything. It's an identity, which means it's true for all values of 'x'.

So, the solutions are: $x = 10$ $X = 544.07$ $x = -4.6$ $x = 1.73$ No solution needed for the last equation as it's an identity.