Just J Thank you Solve fox X and check the solutions 3X 18

Just J. Thank you

Solve fox X, and check the solutions: 3X = 18 X + 7 = 9 X/9 = 5 X + 1/6 = 4 2X/3 = 12 X/3 + 1 = 3

a) 3x = 18

==> x = 18/3 = 6

checking: 3(6) = 18

==> 18 = 18 (true)

b) x + 7 = 9

==> x = 9 - 7 = 2

checking: 2 + 7 = 9

==> 9 = 9 (true)

e) x/9 = 5

==> x = 5*9 = 45

checking 45/9 = 5

==> 5 = 5 (true)

f) (x +1)/6 = 4

==> x + 1 = 4*6 = 24

==> x = 24 -1 = 23

==> x = 23

checking: (23 +1)/6 = 4

==> (24)/6 = 4

==> 4 = 4 (true)

i) 2x/3 = 12

==> 2x = 12*3

==> 2x = 36

==> x = 36/2

==> x= 18

checking: 2(18)/3 = 12

==> 2(6) = 12

==> 12 = 12 (true)

j) x/3 +1 = 3

==> x/3 = 3 -1

==> x/3 = 2

==> x = 2*3

==> x = 6

checking: 6/3 +1 = 3

==> 2 + 1 = 3

==> 3 = 3 (true)