Question

solve the following using trial and error method

x + 4 = 15

y - 7 = 13

6m = - 18

3x/2 = 9

9 x + 3 = - 33

21 - 4x = - 7

3 x / 5 - 4 = 8 ​

Answer 1

Answer:

x+4=15

x=15-4

x=11

y-7=13

y=13+7

y=20

Answer 2

Answer:

x= 11

y = 20

m = -3

x = 6

x = -4

x = 7

x = 20

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