Question

1. 9x+4 =31




2. 13-7x=5






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Answer 1

Step-by-step explanation:

1. 9x=31-4=9x=27=x=27/9=x=3 2. -7x=5-13=-7x=8=x=-8/7

Answer 2

Answer:

1) 9x = 31 - 4 = 27

$= x = \frac{27}{9}$ = 3

2) 13 - 7x = 5

= -7x = 5 - 13 = -8

x = -8/-7= 8/7

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