Question

please explain how to do all these if u know
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Answer 1

Answer:

a) 4

b) 12

c) 2

d) -4

e) 0

Explanation in photo

Answer 2

Step-by-step explanation:

2(X+4) = 12

2x + 8 = 12            [2 is multiplied by x + 4 to get 2x + 8]

2x = 12-8            [8 is transposed to the right and becomes -8 so 2x = 12-8]

2x = 4            [8 is subtracted from 12 to give 4 on rhs]

x = 4/2            [2 is transposed to the right which becomes /2 so x = 4/2]

x = 2            [2 is divided by 4 to get x = 2]

The other questions are like the same method too

Just

b. n=12

c. n=-3

d.x=-4

e.x=0