3 years ago

What is the value of x when 2x+3=3x-4

Mathematics

2 answers:

fgiga [73]3 years ago

7 0

$2x+3=3x-4 \ \ \ |-3x \ \wedge \ -3 \\ \\ -x=-7 \\ \\ x=7$

slavikrds [6]3 years ago

6 0

2x+3=3x-4
try to isolate the x term
you must do the same thing to both sides or else it won't be equal anymore

2x+3=3x-4
add 4 to both sides
2x+3+4=3x+4-4
2x+7=3x+0
subtract 2x from both sides
2x-2x+7=3x-2x
0+7=x
7=x

the answer is x=7

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