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=x+2y-y-2+32+2r
=x+y-30+2r
b)4-2(a+3b)+5a+3b-2
=4-2a-12b+5a+3b-2
=4-2-2a+5a-12b+3b
=2-7a-15b
sudah beserta caranya!
3x + y + 32
b. 4 - 2(a+3b) + (5a +3b - 2)
4 - 2a -6b + 5a +3b -2
3a - 3b + 2
maaf kalo salah.