Question

I need help with these two please

Answer 1

Answer:

$21(2-x)+12x=44$

$42-21x+12x=44$

$42-9x=44$

$42-9x-42=44-42$

$-9x=2$

$-9x=2\\-9 ~~-9$

$x=-2/9$

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hope it helps..

have a great day!!