We multiply by "a" & "c" until we find the value of it for both problems!
1 ➡-4(a)-2(a)+11-6(a)-13=?
?=0
-12(a) + 24 = ?
-12 = 0
a - 2 = 0
+2. +2
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2a. + 2
We have one solution in this problem!
Therefore, a = 2 would be your answer
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2➡2(c)+4-3(c)-(-9+(c)+5)=?
? = 0
-2(c) + 8
-2 = 0, right?
c - 4 = 0
+4 +4
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4c + 4
We have one solution in this problem as well
Therefore, c = 4 would be your answer