Both Marquis and Ava have extensive music collections on their phones. Together they have a total of 4210 unique songs. If Marquis has 320 more unique songs than Ava does, how many of the 4210 songs are on Ava‘s phone

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id

step-by-step explanation:

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2(2x + 3) = -4 + 2(2x + 5)

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 6

4x - 6 + 6 = 4x - 6 + 6

4x = 4x

x = x

unlimited solutions.