-6 (2x + 4) + (8 + 3x) = -20​

-6(2x + 4) + (8 + 3x) = -20

-12x - 24 + 8 + 3x = -20

-9x - 16 = -20

-9x = -20 + 16

-9x = -4

x = 4/9

step-by-step explanation:

milk=16 large

soda=280 kids

juice box=82 regular

63 soda +63 regular

124 large total

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this