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Sagot :
Answer:
7) 4
Step-by-step explanation:
-17+2(1+3x)=x-5(3-x)
-17+2+6x=x-15+5x
-17+6x=x-15+2+5x
-17+6x-5x=x-13
x=x-13+17
x=x+4
x-x =4
0=4
6) 2(x+3.5)-x=-3(6-2x)
2x+7-x=-18+6x
x+7=-18+6x
x+6x=-18+7
7x=11
x=1 4/7
8) -2(x+4)+9x=4+7x
-2x-8+9x=4+7x
7x-8=4+7x
7x+7x=-8+4
14x=-4
x=-2/7
2x+7-x=-18+6x
x+7=-18+6x
x+6x=-18+7
7x=11
x=1 4/7
8) -2(x+4)+9x=4+7x
-2x-8+9x=4+7x
7x-8=4+7x
7x+7x=-8+4
14x=-4
x=-2/7
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