Reverse the process to find the number:
7 is added to the product of 3 and a number to get 19.
The last thing done is add 7; the reverse process of add is subtract, so subtract 7, leaving:
The product of 3 and a number is 19 - 7 = 12.
The reverse process to multiply (product) by 3 is divide, so divide by 3, leaving:
a number is 12 ÷ 3 = 4
place the piece of wood in a jig to hold it in place,brush on laminite glue.place laminite piece onto the wood and press out the air pockets with a heavy roller. release from jig before the excess glue begins to bond to the jig.trim edges,Done.