2x + 22
Step-by-step explanation:
3x - (1)x = 2x
10 + 12 = 22
therefore 2x + 22 is your answer
t = 3
step-by-step explanation:
put t = 3 in this expression :
(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680
just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !