2(6x+7)=3x+square+triangle
2(6x+7) = 3x + square + triangle
12x + 14 = 3x + square + triangle
Subtract 3x from both sides:
9x + 14 = square + triangle
Since we don't have any other information about the square and triangle, we cannot solve for x or determine the values of square and triangle. The equation is incomplete.