Which property justifies the work between the given equation and step 1? Given: 4x - 20 + 3x + 5 = 20
Step 1: 4x + 3x - 20 + 5 = 20

I ONLY NEED THE PROPERTY

Rai compares two cable plans from different companies. which equation gives the correct value of mm, the number of months for which plans a and b cost the same?

Through non-collinear points there is exactly one plane.

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet