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Julli [10]
3 years ago
14

Select the correct answer.

Mathematics
2 answers:
Luden [163]3 years ago
7 0

Answer:

-8

Step-by-step explanation:

-3x + 7x - 8 = 34 + 9x - 2

-3x + 7x - 9x = 34 - 2 + 8

-5x = 40|: (-5)

x = -8

Ne4ueva [31]3 years ago
6 0

{ \bf{ \underbrace{ The\:value\:of\:x\:is\:-8.}}}

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

- 3x + 7x - 8 = 34 + 9x - 2 \\ ⇢ 4x - 9x = 32 + 8 \\ ⇢  - 5x = 40 \\ ⇢ x =  \frac{40}{ - 5}  \\ ⇢ x =  - 8

{ \bf{ \underbrace{To\:verify :}}}

- 3x + 7x - 8 = 34 + 9x - 2 \\ ⇢ - 3 \times  - 8 + 7  \times  - 8 - 8 = 34 + 9 \times  - 8 - 2  \\ ⇢24 - 56 - 8 = 34 - 72 - 2 \\ ⇢24 - 64 = 34 - 74 \\ ⇢ - 40 = - 40 \\  ⇢L.H.S.=R. H. S

Hence verified. ✔

\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}

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Step-by-step explanation:

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