(5a+3)*4=20a+12
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(x-0,3)*2=2x-0,6
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(-4+c)*(-2)=8-2c
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(8-u)*(-1)=u-8
---
(u-1)*5=5u-5
----
2(1,5-x)=3-2x
---
6(-2+x)=6x-12
----
-5(3-k)=5k-15
----
-(z-5)=5-z
=========================================
4(a-2b+c)=4a-8b+4c
---
-9(8m-u+3)=9u-72m-27
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(6x+9-3/4z)*(-8)=6z-48x-72
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-3(-12-8u+42)=36+24u-126
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0,1(-10a+5-3c)=0,5-a-0,3c
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(-4x+2y-6)*(-1/2)=2x-y+3
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