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Solve for a. 7a - 2b = 5a - b
asked
Dec 14, 2018
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3
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Solve for a.
7a - 2b = 5a - b
Mathematics
high-school
Sydell
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Sydell
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6
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a = 1/2 b since you first try and get them each on ine side
Basma
answered
Dec 16, 2018
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Basma
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7
votes
Hello,
adrianaramirez7,
Let's solve for a.
7a
−
2b
=
5a
−b
Step 1: Add -5a to both sides.
7a
−
2b
+
−
5a
=
5a
−b
+
−
5a
2a
−
2b
=
−b
Step 2: Add 2b to both sides.
2a
−
2b
+
2b
=
−b
+
2b
2a
=b
Step 3: Divide both sides by 2.
2a
/2
=
b/2
a=
12
b
Answer:
a=
1/2
b
Mbonness
answered
Dec 20, 2018
by
Mbonness
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