
初一数学题!!!!!!!!!!!!!!要过程!!!!!!!!!!!!急!!!!!!!!!!!!!!
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(4)-3/4x+3=4x-6
-3x+12=16x-24
-3x-16x=-24-12
-19x=-36
x=36/19
(5)19/11x+7/11+x=3/11x-4
19x+7+11x=3x-44
19x+11x-3x=-44-7
27x=-51
x=-17/9
(6)5a+8-6a=2a+3
5a-6a-2a=3-8
-3a=-5
a=5/3
-3x+12=16x-24
-3x-16x=-24-12
-19x=-36
x=36/19
(5)19/11x+7/11+x=3/11x-4
19x+7+11x=3x-44
19x+11x-3x=-44-7
27x=-51
x=-17/9
(6)5a+8-6a=2a+3
5a-6a-2a=3-8
-3a=-5
a=5/3
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