the amount of rent paid by a teacher is two-fifths of the teacher's monthly income. The rent paid by the teacher is $1100. What
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Part 1: 
Part 2: Sam is not correct because <span>he messed up the second step. He added 2x on both sides to get 7x, instead he should have subtracted. </span>
Part 2: Sam is not correct because <span>he messed up the second step. He added 2x on both sides to get 7x, instead he should have subtracted. </span>
You need to start calculating from the innermost bracket and if there are no signs to do any operation then you need to multiply
