Set it equal to each other. 3x-38+7x-95=47. 10x-133=47. 10x=180. X=18
14b + 6b - 12
(14b + 6b) - 12 collect like terms
20b - 12 << your answer
hope this helps, God bless!
Square both sides. (5-2x) - (2-x) = 1^2. 5 - 2x - 2 + x = 1. Simplify to get 3 - x = 1. X=2