3 years ago

HELP ME PLS ILL BRAINLIST !

Mathematics

2 answers:

Alexus [3.1K]3 years ago

6 0

1.) expression
2.) 8
3.) 5d 6f -4bd -3 8b

Nikolay [14]3 years ago

6 0

1. Expression
2. 8
3. 5d, 6f, 4db, 3, 8b

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$\therefore \: 4x = \frac{1}{2} \{(x + 5) + 44 \} \\ \\ \therefore \: 4x = \frac{1}{2} \{x + 5 + 44 \} \\ \\ \therefore \: 4x \times 2= \{x + 49\} \\ \\ \therefore \: 8x = x + 49 \\ \\ \therefore \: 8x - x = 49 \\ \\ \therefore \: 8x - x = 49 \\ \\ \therefore \:7x = 49 \\ \\ \therefore \:x = \frac{49}{7} \\ \\ \therefore \:x = 7\\ \\ \therefore \:4x = 4\times 7.. (\because EF = 4x)\\ \\ \: \: \: \: \: \huge \red{ \boxed{\therefore \:EF = 28}}$