Answer:
5y=5x+20-10x
collect like terms
5y=-5x+20
divide through by 5
y=-1x+4
Step-by-step explanation:
hello :
10x + 5y = 5x + 20 for Y
5y = 5x-10x+20
5y = -5x+20
divide by : 5
y = -x+4
