Question

6. Solve 3x + 7 = 35-x and check your answer.​

Answer 1

Step-by-step explanation:

3x + 7 = 35 - x

7 = 35 - x - 3x

7 = 35 - 4x

4x = 35 - 7

x = 28/4

Therefore x = 7.

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Answer 2

$\huge \underline \mathrm \purple{Question↣}$

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sᴏʟᴠᴇ 3x + 7 = 35-x ᴀɴᴅ ᴄʜᴇᴄᴋ ʏᴏᴜʀ ᴀɴsᴡᴇʀ

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$\huge \underline \mathrm \green{Answer↣}$

⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀${\large{\sf { : \implies{ \: 3x + 7 = 35 - x}}}}$

⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀$\large{ \sf { : \implies3x + x = 35 - 7}}$

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⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀$\large \sf : \implies \: 4x = 28$

⠀⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀$\large{ \underline{ \boxed{\sf { \red { : \implies \: x = 7}}}}}$

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ᴠᴇʀɪғɪᴄᴀᴛɪᴏɴ ↴

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ᴘᴜᴛ x = 7 ;

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⠀⠀⠀⠀⠀⠀⠀⠀${\large{\sf { : \implies{ 3(7) +7 = 35-(7)}}}}$

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⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀${\large{\sf { : \implies{ 21 +7 = 35-7}}}}$

⠀⠀⠀⠀⠀⠀⠀

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀${\large{\underline{\boxed{\sf {\red { : \implies{ 28 = 28 }}}}}}}$