500
Jacob has m nails and twice as many bolts as nails. He buys another 20 nails and 30 bolts. Find the total number of nails and bolts Jacob has now.
What is Jacob has 3m + 50 nails and bolts now.
Number of nails = m + 20
Number of bolts = 2m +m30
(m+20) + (2m+30) = 3m + 50