3 years ago

Please help me, thank you

Mathematics

1 answer:

NikAS [45]3 years ago

3 0

Answer:

X=30

Step-by-step explanation:

$a + b \: + c + d = \: 360 \\ 3x - 10 + 2x + 8 + 3x + 4x + 2 \\ = 12x = 630 \\ x = 360 \div 12 \\ x = 30$

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