byjennjenn
19.11.2020 •
Mathematics
She finds a package of four noise-makers. At this rate, how many packages will she need to buy so that each person has one noise-maker? *
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Ответ:
Ответ:
No but you can rewrite the negative as -1 then distribute the -1:-
5x+14-2x=9-(4x+2)
5x + 14 - 2x = 9 -1(4x + 2)
3x + 14 = 9 - 4x - 2 Add -14 and 4x to both sides:-
3x + 4x = 9 - 2 - 14
7x = -7
x = -1 answer