Remember
you can do anyting to an equaiton as long as you do it to both sidess
distributive property
a(b+c)=ab+ac
commutativ property
a+b=b+a
distribute
3(4x-2)=12x-6
12x-6=9+2x+5
add 6 both sides
12x+6-6=9+6+5+2x
12x+0=20+2x
minus 2x
10x=20
divide 10
x=2
20 and 28 can be divided by 4, so just take the 4 out so the answer should be 4(5x - 7)
Answer:
4 years
Step-by-step explanation:
Look for the year where the green bar is higher than the red bar.
