Question 1120811
Let {{{x}}} = the number of panels plant B produced
{{{ x - 2000 }}} = the number of panels plant A produced
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{{{ .03x + .04*( x - 2000 ) = 620 }}}
{{{ .03x + .04x - 80 = 620 }}}
{{{ .07x = 700 }}}
{{{ x = 10000 }}}
and
{{{ x - 2000 = 8000 }}}
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Plant A produced 8,000 panels