Question

Find value of x

plese Explain​

Answer 1

Answer:

0.12x+0.15 (13-0.2x) = 0.69

0.12x +1.95 -0.26x = 0.69

-0.14x +1.95 -0.69 = 0

-0.14x +1.26 = 0

0.14x = 1.26

14/10 x = 126/10

x = 126/14

x = 9

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Answer 2

Answer:

x=-5.81/0.22

Step-by-step explanation:

0.4x+0.5[(13-0.2x)/0.3]=2.3

0.4x+(6.5-0.1x)/0.3=2.3

0.12x+6.5+0.1x=2.3(0.3)

0.22x+6.5=0.69

0.22x=0.69-6.5

0.22x=-5.81

x=-5.81/0.22