solve each system using substitution. check your answer.
y=8-x
7=2-y

Question

solve each system using substitution. check your answer.
y=8-x 
7=2-y

solomonzelman · Answer

maybe you meant:
$\normalsize\color{royalblue}{     \rm y=8-x  }$
$\normalsize\color{royalblue}{     \rm x=2-y  }$            ???

anonymous · Answer

no thats how it is

solomonzelman · Answer

$\normalsize\color{royalblue}{     \rm y=8-x  }$
$\normalsize\color{royalblue}{     \rm 7=2-y  }$

solve for y, in equation 2.
Substitute your y solution into the first equation.
solve for x in the (new formed) first equation

anonymous · Answer

Solve for one of the variables first. Im going to solve for y in the bottom first.  Using the subtraction and multiplication properties of equality. You'll get that y= -5. Substitute that into the first one and solve for x.