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ICE Princess25 [194]
3 years ago
9

11x + 12 = 8x - 9 ... please

Mathematics
2 answers:
balandron [24]3 years ago
6 0
Inverse operations should be your first choice
11x+12=8x-9
-8x. -8x
3x+12=-9
-12 -12
3x=-21
Dived both side by 3
X=-7
Marat540 [252]3 years ago
4 0

Assignment: \bold{\Solve \ Equation: \ 11x+12=8x-9}

<><><><><><><>

Answer: \boxed{\bold{x=-7}}

<><><><><><><>

Explanation: \downarrow\downarrow\downarrow

<><><><><><><>

[ Step One ] Subtract 12 From Both Sides

\bold{11x+12-12=8x-9-12}

[ Step Two ] Simplify

\bold{11x=8x-21}

[ Step Three ] Subtract 8x From Both Sides

\bold{11x-8x=8x-21-8x}

[ Step Four ] Simplify

\bold{3x=-21}

[ Step Five ] Divide Both Sides By 3

\bold{\frac{3x}{3}=\frac{-21}{3}}

[ Step Six ] Simplify

\bold{x=-7}

<><><><><><><>

\bold{\rightarrow Mordancy \leftarrow}

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