Answer:
Step-by-step explanation:
s(1-30/100)=420
s(100-30)/100=420
s(70/100)=420
s(7/10)=420
7s=4200
s=600
Since there is an addition symbol in the middle all you need to do is combine like terms/add. Your final answer should be:
p= 5s+5
X=12
Hope this helps
10x-20+6x+8=180º