Answer: 20
Step-by-step explanation: how i got the answer was to multiply everything by two. then add everything together.
3×9=27
27×7=189 units³
I hope this helped!!!:)
2x + 4 = 4x
4 = 2x
x = 2
Hope that helps :)
4 cups of blue paint and 8 cups of red paint
explanation
to pour one cup of blue paint, two cups of red paint has to be poured.
since when you add both those it adds to 3
so multiply each by 4 to get 4 cups of blue paint and 8 cups of red paint