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.6(a)+3.15(5.25)=7.35
We move all terms to the left:
.6(a)+3.15(5.25)-(7.35)=0
We add all the numbers together, and all the variables
.6a+9.1875=0
We move all terms containing a to the left, all other terms to the right
.6a=-9.1875
a=-9.1875/.6
a=-15+0.1875/.6
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