3(2x-1)+7(x-5)=-52(1-3x)

Question

3(2x-1)+7(x-5)=-52(1-3x)

Answer 1

6x-3+7x-35+52-156x=0
14-143x=0
143x=14
x=14/143

Answer 2

3(2x-1)+7(x+5)=-52(1-3x)
7(х-5)+3(2х-1)=-52(1-3х)
7х-35+3(2х-1)=-52(1-3х)
7х-35+6х-3=-52(1-3х)
(7х+6х)+(-35-3)=-52(1-3х)
13х+(-38)=156х-52
(13х-156х)-38=(156х-156х)-52
-143х-38=-52
(38-38)-143х=38-52
-143х=-14
-143х -14
------- = ------
-143 -143
-14
х = ------
-143

Comments

---- это типо дробь

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а ок

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пасибо

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нез ;)