document.write( "Question 1088551: if you have an equation like 7b - 2a when a=-3 and b=4 do you just say 74-23 or 7x4-2x3
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Algebra.Com's Answer #702830 by MathLover1(20849) $\"\"$ $\"About$

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\n" ); document.write( " $\"7b+-+2a+\"$
\n" ); document.write( "when $\"a=-3\"$ and $\"b=4\"$ , you just substitute $\"-3\"$ for $\"a\"$ , and $\"4\"$ for $\"b\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"7b+-+2a+=7%2A4+-+2%28-3%29+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"7b+-+2a+=28+%2B+6+\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"7b+-+2a+=34+\"$ \n" ); document.write( "

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