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KATRIN_1 [288]
3 years ago
13

2a-9=-2a+15 helppppp

Mathematics
2 answers:
Nina [5.8K]3 years ago
8 0
<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>
Tju [1.3M]3 years ago
4 0
2a - 9 = -2a + 15      |add 9 to both sides

2a = -2a + 24    |add 2a to both sides

4a = 24    |divide both sides by 4

a = 6
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