Question

Solve simple equation: 3 (x-5)= -2(4-x)
please quickly the answer is 7 what is the solution ​

Answer 1

Step-by-step explanation:

Total no. of marbles=3+2+4=9

(1) No. of white marbles=2

∴ probability of getting a white marble=

9

2

(2) No. of blue marbles=3

∴ probability of getting a blue marble=

9

3

=

3

1

(3) No. of red marbles=4

∴ probability of getting a red marble=

9

4

(b)Since, Total no. of balls = 5+8+7=20

(1) No. of balls that are white or green = 8+7=15

∴ probability of getting a white or green ball =

20

15

=

4

3

(2) No. of balls that are neither green nor red =7

∴ probability of getting a ball that are neither green nor red =

20

7

Answer 2

Answer:

3 (x-5)= -2(4-x)

3x-15= - 8+2x

= 3x-2x= - 8+15

=x= 7

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Required Answer -

$\rightarrow$x=7