Question 927461
{{{A + (2/5)A = 70}}}
"A" by itself is the same as writing 1A or {{{5/5}}}A
{{{(5/5)A + (2/5)A = 70}}}
Combine like terms
{{{(7/5)A = 70}}}
Multiply both sides by 5/7 to cancel out the 7/5
{{{cross((5/7)*(7/5))*A = (5/7)*70}}}
{{{highlight(A = 50)}}}
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Now take (2/5)x 50 to get the second number
{{{highlight_green(20)}}}