What is the letter a? 6a+14=-7-a. a=?
2 answers:
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<h2>(1)</h2><h2> =(a+b)(3c-d)</h2><h2> =a(3c-d)+b(3c-d)</h2><h2> =3ac-ad+3bc-bd</h2><h2>(2)</h2><h2> =(a-b)(c+2d)</h2><h2> =a(c+2d)-b(c+2d)</h2><h2> =ac+2ad-bc-2bd</h2><h2>(3)</h2><h2> =(a-b)(c-2d)</h2><h2> =a(c-2d)-b(c-2d)</h2><h2> =ac-2ad-bc+2bd</h2><h2>(4)</h2><h2> =(2a+b)(c-3d)</h2><h2> =2a(c-3d)+b(c-3d)</h2><h2> =2ac-6ad+bc-3bd</h2>
Answer:
x = -9/2
Step-by-step explanation:
1. Divide 9 by -1/3:
÷
=
·
= -27
2. Divide both sides by 2:
2(x - 9) = -27
(x - 9) =
3. Add 9 to both sides:
x =
(or 4.5 if you need it in decimal form)
hope this helps!