The S A T® - SAT Suite of Assessments

over 2, equals 10, then multiplying each side of this equation by 2 gives . b. equals 20. Substituting 20 for . b. in the equation . a, minus . b, equals 12 gives . a, minus 20, equals 12. Adding 20 to each side of this equation gives . a, equals 32. Since . a, equals 32 and b equals 20, it follows that the value of . a, plus . b. is 32 plus 20 ... ................
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