If 3x + Y / 2 = 7x + 3Y = 1 / 2, then x =? Y =?

If 3x + Y / 2 = 7x + 3Y = 1 / 2, then x =? Y =?


3x + Y / 2 = 1 / 2 (1), 7x + 3Y = 1 / 2 (2)
(1) Multiply both sides by 2 to get 6x + y = 1 (3)
(2) Multiply both sides by 2 to get: 14x + 6y = 1 (4)
(3) Multiply both sides by 6 and subtract (4) to get 36x + 6y-14x-6y = 6-1
22x=5
x=5/22
If (3) is brought in, y = 1-30 / 22
=-4/11



0.75*40-7x=14.6


0.75*40-7x=14.6
30-7x=14.6
15.4=7x
x=2.2



How to solve the equation 12.6-7x = 1.4?


7x=12.6-1.4
7x=11.2
x=1.6