Question 932041
Equation 1: {{{B = A + 170}}}
Equation 2: {{{A + B = 1510}}}
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Note that equation 1 is already solved for B
Plug (A + 170) into equation 2 for B
Equation 2: {{{A + B = 1510}}}
{{{A + (A + 170) = 1510}}}
Combine like terms
{{{2A + 170 = 1510}}}
Subtract 170 from both sides.
{{{2A = 1340}}}
Divide both sides by 2
{{{highlight(A = 670ft)}}}
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No go back and solve for B
Equation 1: {{{B = A + 170}}}
{{{B = (670) + 170}}}
{{{highlight_green(B = 840ft)}}}