One equivalent equation could just be the numbers 2.5 and 5 distributed. 2.5(12-2x)+5(x+1) = 30 - 5x + 5x + 5
Another equivalent equation could be the distribution of those numbers again and also the combination of like terms. 2.5(12-2x)+5(x+1) 30 - 5x + 5x + 5 = 35
