Step-by-step explanation:
-7/2 = -28
-7 = -28 × 2
-7 = -56
<span><span><span><span>2a</span>−9</span>+<span>2a</span></span>=<span><span><span>−<span>2a</span></span>+15</span>+<span>2a</span></span></span><span><span><span>4a</span>−9</span>=<span>15
</span></span>Step 2: Add 9 to both sides.<span><span><span><span>4a</span>−9</span>+9</span>=<span>15+9</span></span><span><span>4a</span>=<span>24
</span></span>Divide both sides by 4.<span><span><span><span><span>4a/</span>4</span></span></span>=<span><span>24/<span>4
</span></span></span></span>Answer:<span>a=<span>6</span></span>
c or d for sure hope this helps
Consider this option; make a design according to the local requirements.