Решите уравнения, плиз

Question

Решите уравнения, плиз

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Answer 1

5. -4.1x+5.5x-7.3x-3.6=-5.3x
-0.6x=3.6
x=-6
6. 0.4b+3=0.6b+0.2-b
0.8b=-5.8
b=-7.25
7. 6x-10-3+6x-4x=-3
8x=10
x=1.25
8. 6x-6=9.4-1.7x
7.7x=15.4
x=2
9. 3.5-9a=a-8
-10a=11.5
a=-1.15
10. 7.2-3.3m=2.7m+3.2
-6m=-4
m=1/3