Mathematics, 11.02.2021 08:20, thereal6ix9ine69

I need help :). Can anyone solve this or send me the answers?! The test is #7 adding and subtracting rationals 7th grade

I need help :). Can anyone solve this or send me the answers?! The test is #7 adding and subtractin

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I need help :). Can anyone solve this or send me the answers?! The test is #7 adding and subtracting...