x-3/2-2x+1=1
两边乘2
x-3-4x+2=2
4x-x=-3+2-2
3x=-3
x=-3÷3
x=-1
(-3)^2—2^3÷1/3*3
=9-8÷1/27
=9-216
=-207
-1^4+50÷2^2*(-1/2)
=-4+50÷4*(-1/2)
=-4-6.25
=-10.25
72°35′÷2+18°33′*4
=36°17′30"+72°132′
=36°17′30"+74°12′
=110°29′30"
x-3/2-2x+1=1
两边乘2
x-3-4x+2=2
4x-x=-3+2-2
3x=-3
x=-3÷3
x=-1
(-3)^2—2^3÷1/3*3
=9-8÷1/27
=9-216
=-207
-1^4+50÷2^2*(-1/2)
=-4+50÷4*(-1/2)
=-4-6.25
=-10.25
72°35′÷2+18°33′*4
=36°17′30"+72°132′
=36°17′30"+74°12′
=110°29′30"