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就2道计算题!化解下列各式:(1)(-4y+3)-(-5y-2)(2)3x+1-2(4-x)

题目详情
就2道计算题!
化解下列各式:
(1)(-4y+3)-(-5y-2)
(2)3x+1-2(4-x)
▼优质解答
答案和解析
(1)(-4y+3)-(-5y-2)
=-4y+3+5y+2
=y+5
(2)3x+1-2(4-x)
=3x+1-82x
=3x+2x+1-8
=5x-7