a) 8x-75=5x+21
8x-5x=21+75
3x=96:3
x=32
b) 9x+25=-(2x-58)
9x+25=-2x+58
9x+2x=58-25
11x=33
x=33:11
x=3
tick mình nha
a, 8x-5x=21+75
=>3x=96
=>x=32
b, 9x+25=-2x+58
=>9x+2x=58-25
=>11x=33
=>x=3
a) 8x-5x=21+75
3x= 96
x=32
b) 9x+25=-2x+58
9x+2x=58-25
11x= 33
x=3
trời zzzz quá m.n tick cho mk ấm hơn nha!!!!!!!!!
kho..............wa...................troi................thi......................ret.....................ai..............tich...............ung.....................ho....................minh..................voi................ret............wa
