decapria
25.07.2019 •
Mathematics
Valerie is making identical quilts for herself and her sister. for each quilt she buys 5 yards of solid fabric and w yards of printed fabric. if w = 4, how much fabric did valerie buy to make both quilts? ( x 2;
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Ответ:
Ответ:
Rewrite with understood 1's:
1(-7a - 19c) - 1(-12a + 30c) - 1(-21a - 11c)
Distribute 1's to the terms:
-7a - 19c + 12a - 30c + 21a + 11c
Combine like terms.
26a - 38c