How many cubic blocks of side length 1/7 inch would it take to fill a cube with a side length of 3/7 inch?

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules