8W + 3 = 9
subtract 3 from each side
8W + 3 - 3 = 9 - 3
8W = 6
divide both sides by 8
W = 6/8
= 3/4
check
8(3/4) + 3 = 9
24/4 + 3 = 9
6 + 3 = 9
checks
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x = y+3 x+2y = 9 => x = 9-2y y+3 = 9-2y 2y+y = 9-3 3y = 6 y = 2 and x = 5
7(3y-2)-(-4y+9)
3a + 9 =3X(a + 3)
Subract 5n from both sides and you get 9=-3n, then divide bother sides by -3 and you get n= -3
143542make the variables X plus Y plus Zthe solution is X*Y,X*Z, then (X+Z)*Y flipped7*2=147*5=35(7+5)*2=24 flipped =421435425*3=155*2=10(5+2)*3=21...flipped =12151012