Question

please answerrrrrr! and also explain I am not able to understand! the 5th solve one!​

Answer 1

Answer:

x=20

Step-by-step explanation:

2/5x - 2/9(x+2) = 4

first , equating the denominater

multiply and diving 2/5x by 9 and 2/9(x+2) by 5

2×9/5×9 x - 2×5/9×5 (x+2)=4

18/45 x - 10(x+2) /45 =4

18x - 10x + 20 /45 =4

18x -10x +20 =4 × 45

8x +20 = 180

8x = 180 -20

8x = 160

x = 160/8

therefore, x= 20

Answer 2

Step-by-step explanation:

2/5x-2/9(x+2)=4

2/5x-2/9x-4/18=4

2/5x-2/9x=4+4/18

18x-10x/ 45=72+4/18

8x/45=76/18

8x*18=76*45

x=76*45/8*18