To get the answer we have to substitute b=3 and solve it.
5a-10b=45
5a-10*3=45
5a-30=45 /+30 add 30 both sides
5a-30+30=45+30
5a=75 /:5 divide both sides by 5
5a:5=75:5
a=15 - its the answer
Your answer would be 6.659 hope this helpedddd
Answer:
x=8=2=3
Step-by-step explanation:
Answer: i belive that it is 38.70
Step-by-step explanation: 39.6 - 2.35 + 1.45 = 38.70
