Answer:
10*3=5(x-4)(doing cross multiplication)
30=5x-20
30-20=5x
10/5=x
2=x
Step-by-step explanation:
x=10 so the proportion is 3/6 =5/10
5(x-4) = 3*10, cross multiply
5x -20 =30, distribute in parenthesis
5x = 30 +20, add 20 on both sides
5x=50, combine like terms
x= 10, divide both sides by 5
