Question

solve the following equations and check results 7x-2=8-x​

Answer 1

Answer:

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Answer 2

Given:

7x - 2 = 8 - x​

We have to find, the value of x and check the results.

Solution:

∴ 7x - 2 = 8 - x​

⇒ 7x + x = 8 + 2

⇒ 8x = 10

⇒ x = $\dfrac{10}{8} =\dfrac{5}{4}$

∴ 7x - 2 = 8 - x​

Put x = $\dfrac{5}{4}$, we get

7($\dfrac{5}{4}$) - 2 = 8 - $\dfrac{5}{4}$

⇒ $\dfrac{35}{4}$ - 2 = $\dfrac{32-5}{4}$

⇒ $\dfrac{35-8}{4}$ = $\dfrac{27}{4}$

⇒ $\dfrac{27}{4}$ = $\dfrac{27}{4}$, the results is true.

Thus, x = $\dfrac{5}{4}$