Let's write the following equation in the form of Y expressed by an equation containing X 2x-y=3 -y=3-2x y=3+2x 3x+y-1=0 y=1-3x

Let's write the following equation in the form of Y expressed by an equation containing X 2x-y=3 -y=3-2x y=3+2x 3x+y-1=0 y=1-3x

2x-y=3
-y=3-2x
y=2x-3
3x+y-1=0
y=1-3x

If 5 (x + 2) = 2A + 3 and (3a + 1) x / 3 = a (5x-3) / 5 have the same solution, then the value of a is

Answer: the solutions of the two equations 5 (x + 2) = 2A + 3 and (3a + 1) x / 3 = a (5x-3) / 5 are the same
x+2=(2a+3)/5
x=(2a+3)/5-2
(3a+1)x/3=a(5x-3)/5
Multiply both sides by 15 to get 5 (3a + 1) x = 3A (5x-3)
15ax+5x=15ax-9a
5x=-9a
x=-9a/5
So: x = (2a + 3) / 5-2 = - 9A / 5
So: 2A + 3-10 = - 9A
2a+9a=10-3
11a=7
a=7/11

If the solutions of the two equations a (5x-3) / 5 = (3a + 1) x / 3 and 5 (x + 2) = 2A + 3 about X are the same, try to find the solution of A
value

Answer: 5 (x + 2) = 2A + 3 and (3a + 1) x / 3 = a (5x-3) / 5 have the same solution, x + 2 = (2a + 3) / 5x = (2a + 3) / 5-2 (3a + 1) x / 3 = a (5x-3) / 5 multiply both sides by 15 to get: 5 (3a + 1) x = 3A (5x-3) 15ax + 5x = 15ax-9a5x = - 9ax = - 9A / 5, so: x = (2a + 3) / 5-2 = - 9A / 5, so: 2A + 3-10 = - 9a2a + 9A