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FinnZ [79.3K]
3 years ago
7

Help me I'm in exam and its time Solve for x: 3(x - 5) + 4x = 2x + 8

Mathematics
2 answers:
myrzilka [38]3 years ago
7 0

3(x-5)+4x=2x+8

3x-15+4x=2x+8

7x-15=2x+8

   +15      +15

7x=2x+23

-2x -2x

5x=23

/5   /5

x=4.6

---

sorry if I didn't help

lakkis [162]3 years ago
7 0

Answer:

4.6 = X

Step-by-step explanation:

3(x-5)+4x=2x+8

3x-15+4x=2x+8

*3x+4x=7x*

-15+7x=2x+8

+15             +15

7x=2x+23

-2x   -2x

5x=23

/5    /5

x=4.6

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=====================================

Explanation:

Abbreviations:
sec = secant
cot = cotangent
cosec = cosecant (csc is also a widely used abbreviation)

-----------------

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