Answer:
-2a+11b
Explanation:
3(a+2b)-5(a-b)
multiplying the numbers inside brackets
3a+6b-5a+5b ∵ - × - = +
3a-5a+6b+5b
-2a +11b
3(a+2b) - 5(a-b)
we apply distributive property:
3*a + 3*2b - 5*a + 5*b
3a+ 6b -5a +5b
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