I really need help with this.

M.  2.5n - (-8.2) = 26. 7

to find n transpose

2.5n + 8.2 = 26. 7

2.5n = 26. 7 - 8.2

2.5n = 18.5

n = 18.5 ÷ 2.5

n = 7.4

L.   = 18

7a + 1 = 18 ×2

7a + 1 = 36

7a = 36 - 1

7a = 35

a = 35 ÷ 7

a = 5

N.     b + 1 = -11

b   = -11 -1

b   = -12

b = -12 -

b = 20

H.   5 - d = 32

- d = 32 - 5

- d = 27

d =  27 +

d = 6

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