A cube because it equals all of those but it could possibly be a rectangular prism just guessing didn't give me that much information to answer the question
A Quadrilateral.
-4x-4 equals -16. Add 4 to both sides; -4x equals -12. Divide both sides by -4; x equals 3.
12x - 4 = 12 12x = 16 <--- by adding 4 to both sides x = 4/3 <--- by dividing both sides by 12
3x + 4 = 12 Subtract 4 from both sides: 3x = 8 Divide both sides by 3: x = 8/3 = 22/3
a rhombus
-3x - 4 = 8 Add 4 to both sides: -3x = 12 Divide both sides by -3: x = 12-(-3) = -4
-12-6x=12-10x we can add 12 to both sides, getting: -6x=24-10x then we can add 10x to both sides: 4x=24 divide both sides by 4: x=6 the answer is x equals 6.
A shape with 4 sides is a quadrilateral
Shape has fewer than 6 sides
5y - 4 + 3y = 12 Combine like terms: 8y - 4 = 12 Add 4 to both sides: 8y = 16 Divide both sides by 8: y = 2
A trapezoid is a shape that has 4 sides and 2 parallel sides. The sides that are parallel are called the bases.
Bring all the unknown values to one side and the known values to the other 7s - 12 = 3s - 4 Subtract 3s from both sides 7s - 3s - 12 = 4 4s - 12 = 4 Add 12 to both sides 4s = 4 + 12 4s = 16 Divide both sides by 4 s = 4