Question

-10 - ( x + 5 ) + ( 3 - x ) = -8

Giúp mk lẹ nha mấy bn !!

Answer 1

\(-10-\left(x+5\right)+\left(3-x\right)=-8\)

\(\Leftrightarrow-10-x-5+3-x=-8\)

\(\Leftrightarrow-12-2x=-8\)

\(\Leftrightarrow2x=-4\)

\(\Leftrightarrow x=-2\)

Answer 2

-10 - (x + 5) + (3 - x) = -8

<=> -10 - x - 5 + 3 - x + 8 = 0

<=> (-x - x) - (10 + 5 - 3 - 8) = 0

<=> -2x -7 =0

<=> -2x = 7

<=> x = \(\frac{-7}{2}\)

Vậy x = \(\frac{-7}{2}\)

Answer 3

-10 - ( x + 5 ) + ( 3 - x ) = -8

                   -10-x-5+3-x=-8

              (-10-5+3)-(x+x)=-8

                            -12-2x=-8

                                   2x=-12-(-8)

                                   2x=-4

                                     x=-4:2

                                     x=-2

vậy x=-2

nhớ k chô mình nhé

học tốt

Answer 4

=\(-10-\left(x+5\right)+\left(3-x\right)=-8\)

\(=-10-x-5+3-x=-8\)

\(=\left(-10-5+3\right)-x-x=-8\)

=\(-12-2x=-8\)

\(=-12-2x+8=0\)

\(-4-2x=0\)

\(=-2x=-4\)

\(x=\frac{-4}{-2}=2\)

Answer 5

\(-10-\left(x+5\right)+\left(3-x\right)=-8\)

\(-10-x-5+3-x=-8\)

\(-12-2x=-8\)

\(2x=-4\)

\(x=-2\)

Vậy\(x=-2\)

#DDN