Question 667794
check you answer.
{{{3/2}}}(5(3.4)+7) = {{{3/2}}}(17+7) = {{{(3/1cross(2))(12cross(24))}}} = 36
not correct
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{{{3/2}}}(5x+7) = 16
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{{{3/2}}}{{{2/3}}}(5x+7) = 16{{{2/3}}}
5x + 7 = {{{32/3}}}  *** You erred only here where you have 5x+7={{{highlight(48/2)}}}.  Appears you multiply 16{{{3/2}}} instead of 16{{{2/3}}}.
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Multiply both sides by 3
15x + 21 = 32
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15x = 32 - 21
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15x = 11
{{{highlight_green(x = 11/15)}}}
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Check {{{cartoon(
5*(11/15) = 55/15,
55/15 + 7,
55/15 + 105/15,
160/15,
(1cross(3)/1cross(2))*(80cross(160)/5cross(15)) = 80/5,
16)}}}
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