Answer:
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Step 1:

write equation
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Step 2:

open brackets and multiply 8 with (2x+7) and 5 with (3x + 14)
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Step 3:

Take similar digits same side to make equation more easy to solve
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Step 4:

subtract 16x with 15x to get→x and subtract -70 and 56 to get -40
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⚡ Final answer:
x−14✓