Question 668309
Starting with
y = 2x+3
y = 4x+9
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Set the y values equal to each other
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2x+3 = 4x+9
Combine like terms
2x - 4x = 9 - 3
-2x = 6
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Divide both sides by -2
{{{highlight_green(x=-3)}}}
...
Check {{{cartoon(
2(-3) + 3 = -6 + 3 = -3,
4(-3) + 9 = -12 + 9 = -3)}}}
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