განტოლებათა სისტემა: გრაფიკის გამოყენება

$\goldD{y=\dfrac{1}{2}x+3}$start color #e07d10, y, equals, start fraction, 1, divided by, 2, end fraction, x, plus, 3, end color #e07d10

$\greenE{y=x+1}$start color #0d923f, y, equals, x, plus, 1, end color #0d923f

$\begin{aligned} \goldD{y} &\greenE= \goldD{\dfrac12x + 3} \\\\ 5&\stackrel?= \dfrac12(4) + 3 &\gray{\text{ჩასვით x = 4 და y = 5}}\\\\ 5 &= 5 &\gray{\text{დიახ!}}\end{aligned}$

$\begin{aligned} \greenE{y} &\greenE= \greenE{x+1} \\\\ 5&\stackrel?= 4 + 1 &\gray{\text{ჩასვით x = 4 და y = 5}}\\\\ 5 &= 5 &\gray{\text{დიახ!}}\end{aligned}$