Question

toán lớp 1 mà khó thế  này đây , ai giúp mk với

tìm x , biết : x . 10 + 3 + x .2 + 91 - x  . 3 = x . 8 + 131

Answer 1

 x . 10 + 3 + x .2 + 91 - x  . 3 = x . 8 + 131

\(\Leftrightarrow10x+3+2x+91-3x=8x+131\)

\(\Leftrightarrow10x+2x-3x-8x=1-3-91\)

\(\Leftrightarrow x=-93\)

Answer 2

 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

Answer 3

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

Answer 4

?!? oline math ?!?

------

x = 131 - 3 -91

x=  37 nhaaa

~~~!!

Answer 5

Cho hỏi sao bằng -93 z

Answer 6

\(x\cdot10+3+x\cdot2+91-x\cdot3=x\cdot8+131\)

\(=10x+3+2+91-3x=8x+131\)

\(\Leftrightarrow10x+2x-3x-8x=1-3-91\)

\(\Rightarrow x=-93\)

Answer 7

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!

Answer 8

\(\Leftrightarrow10x+3+2x+91-3x=8x+131\)

\(\Leftrightarrow10x+2x-3x-8x=1-3-91\)

\(\Leftrightarrow x=-93\)

hok tốt