3 years ago

What is the solution of the equation 3x − 7 = 4x? -7 -1 1 7

Mathematics

2 answers:

gogolik [260]3 years ago

8 0

The solution of this equation is -7.
3x - 7 = 4x
3x - 7 - 4x = 0
3x - 4x - 7 = 0
-x - 7 = 0
-x = 7
x = -7

Viktor [21]3 years ago

7 0

3x-7=4x
3x-4x=7
-x=7 |*(-1)
x=-7
Answer: -7

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