solve the following simultaneous linear equations.第1题:a-b=-33a-4b=-5第2题:p+4q=35p-8q=1第3题:y+3=3x3x-2y=0第4题:x+y-5=03x-2y-16=0
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![solve the following simultaneous linear equations.第1题:a-b=-33a-4b=-5第2题:p+4q=35p-8q=1第3题:y+3=3x3x-2y=0第4题:x+y-5=03x-2y-16=0](/uploads/image/z/14323852-28-2.jpg?t=solve+the+following+simultaneous+linear+equations.%E7%AC%AC1%E9%A2%98%3Aa-b%3D-33a-4b%3D-5%E7%AC%AC2%E9%A2%98%3Ap%2B4q%3D35p-8q%3D1%E7%AC%AC3%E9%A2%98%3Ay%2B3%3D3x3x-2y%3D0%E7%AC%AC4%E9%A2%98%3Ax%2By-5%3D03x-2y-16%3D0)
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solve the following simultaneous linear equations.第1题:a-b=-33a-4b=-5第2题:p+4q=35p-8q=1第3题:y+3=3x3x-2y=0第4题:x+y-5=03x-2y-16=0
solve the following simultaneous linear equations.
第1题:a-b=-3
3a-4b=-5
第2题:p+4q=3
5p-8q=1
第3题:y+3=3x
3x-2y=0
第4题:x+y-5=0
3x-2y-16=0
solve the following simultaneous linear equations.第1题:a-b=-33a-4b=-5第2题:p+4q=35p-8q=1第3题:y+3=3x3x-2y=0第4题:x+y-5=03x-2y-16=0
1、a-b=-3(1)
3a-4b=-5 (2)
(1)*3-(2)得
b=-4
a=b-3=-7
2、p+4q=3(3)
5p-8q=1 (4)
(3)*5-(4)得
28q=14
q=0.5
p=3-4q=1
3、y+3=3x(5)
3x-2y=0(6)
(5)代入(6)得
y+3-2y=0
y=3
x=(y+3)/3=2
4、x+y-5=0 (7)
3x-2y-16=0 (8)
(7)*2+(8)
5x-26=0
x=5.2
y=-0.2
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