x . 10 + 3 + x .2 + 91 - x . 3 = x . 8 + 131
\(\Leftrightarrow10x+3+2x+91-3x=8x+131\)
\(\Leftrightarrow10x+2x-3x-8x=1-3-91\)
\(\Leftrightarrow x=-93\)
x . 10 + 3 + x .2 + 91 - x . 3 = x . 8 + 131
<=>10x+2x-x-8x=131-3-91
<=>3x=37
<=>x=37/3
chú bạn học tốt
x . 10 + 3 + x .2 + 91 - x . 3 = x . 8 + 131
⇔10x+3+2x+91−3x=8x+131
⇔10x+2x−3x−8x=1−3−91
⇔x=−93
?!? oline math ?!?
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x = 131 - 3 -91
x= 37 nhaaa
~~~!!
\(x\cdot10+3+x\cdot2+91-x\cdot3=x\cdot8+131\)
\(=10x+3+2+91-3x=8x+131\)
\(\Leftrightarrow10x+2x-3x-8x=1-3-91\)
\(\Rightarrow x=-93\)
x.10+ 3 + x.2 + 91 -x.3=x.8 +131
\(\Leftrightarrow\)10x + 3 +2x + 91-3x=8x +131
\(\Leftrightarrow\)10x + 2x - 3x - 8x=1-3-91
\(\Leftrightarrow\)X= -93
CHÚC BN HỌC TỐT!
\(\Leftrightarrow10x+3+2x+91-3x=8x+131\)
\(\Leftrightarrow10x+2x-3x-8x=1-3-91\)
\(\Leftrightarrow x=-93\)
hok tốt