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2 years ago

7+2x÷3=5 what is x Pls help

Mathematics

1 answer:

Paladinen [302]2 years ago

4 0

Answer:

x = 4

Step-by-step explanation:

Given

$\frac{7+2x}{3}$ = 5 ( multiply both sides by 3 to clear the fraction )

7 + 2x = 15 ( subtract 7 from both sides )

2x = 8 ( divide both sides by 2 )

x = 4

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2 years ago

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Answer:

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2 years ago

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Step-by-step explanation:

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Subtracting equation (2) from equation (1)

$a + 9d-( a + 4d )= - 27-(-12)\\\\\therefore a +9d - a-4d = - 27+12\\\\\therefore 5d = - 15\\\\\therefore d = \frac {- 15}{5}\\\\\huge \orange {\boxed {\therefore d = -3}} \\\\$

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2 years ago

7+2x÷3=5 what is x Pls help​

7+2x÷3=5 what is x Pls help