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valentinak56 [21]
3 years ago
15

What property is this

="5x + 15 + 2x = 4x + 9" alt="5x + 15 + 2x = 4x + 9" align="absmiddle" class="latex-formula">
​
Biology
1 answer:
yanalaym [24]3 years ago
8 0
X= -2

5x + 15 + 2x = 4x + 9

7x + 15 = 4x + 9 (subtract 4 from each side)

3x + 15 = 9 (subtract 15 from each side)

3x = -6 (divide by 3 on each side)

X= -2
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