Hello,
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adrianaramirez7, </span>
</span>Let's solve for a.<span><span><span>7a</span>−<span>2b</span></span>=<span><span>5a</span>−b</span></span>Step 1: Add -5a to both sides.<span><span><span><span>7a</span>−<span>2b</span></span>+<span>−<span>5a</span></span></span>=<span><span><span>5a</span>−b</span>+<span>−<span>5a</span></span></span></span><span><span><span>2a</span>−<span>2b</span></span>=<span>−b</span></span>Step 2: Add 2b to both sides.<span><span><span><span>2a</span>−<span>2b</span></span>+<span>2b</span></span>=<span><span>−b</span>+<span>2b</span></span></span><span><span>2a</span>=b</span>Step 3: Divide both sides by 2.<span><span><span>2a</span>/2</span>=<span>b/2</span></span><span>a=<span><span>12</span>b</span></span>Answer:<span>a=<span><span>1/2</span>b</span></span>
