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ycow [4]
3 years ago
14

What is 2.50x + 4x = 39

Mathematics
2 answers:
Artemon [7]3 years ago
4 0

2.5x+4x=39\\6.5x=39\\x=39/6.5\\x=6

Norma-Jean [14]3 years ago
3 0

2.50=2.5\\\\2.5x+4x=39\\\\6.5x=39\qquad\text{divide both sides by 6.5}\\\\x=\dfrac{39}{6.5}\\\\x=\dfrac{390}{65}\\\\\boxed{x=6}

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