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1.8a-5=-2.8
We simplify the equation to the form, which is simple to understand
1.8a-5=-2.8
We move all terms containing a to the left and all other terms to the right.
+1.8a=-2.8+5
We simplify left and right side of the equation.
+1.8a=+2.2
We divide both sides of the equation by 1.8 to get a.
a=1.2222222222222
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