5y-1=2+3y Z-1+2(z-1)=15 8x-4=5-x

5y-1 = 2+3y
5y= 1+2+3y
5y-3y= 4
2y=4
y= 4÷2=2

8×-4=5-×
8×=5+4-×
8×+×=9
9×=9
×=9÷9=1

5y - 1 = 2 + 3y
=> 5y - 3y = 2 + 1
=> 2y = 3
=> y = 3/2
=> y = 1 1/2

z - 1 + 2(z - 1) = 15
=> z - 1 + 2z - 2 = 15
=> 3z - 3 = 15
=> 3z = 15 + 3
=> 3z = 18
=> z = 18/3
=> z = 6


8x - 4 = 5 - x
=> 8x + x = 5 + 4
=> 9x = 9
=> x = 9/9
=> x = 1