70-q-q-2q=80 We'll this is confusing
2 answers:
<em>70-q-q-2q=80</em>
<em>or, 70 - 2q - 2q = 80</em>
<em>or, 70 - 4q = 80</em>
<em>or, -4q = 80 - 70</em>
<em>or, -4q = 10</em>
<em>or, q = 10/-4</em>
<em>or, q = -2.5 (ans)</em>
70 - q - q - 2q = 80
-4q = 80 - 70
-4q = -10
q = -10/-4
q = -2.5
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