It depends on the systems of equations. I would stay away from elimination, go for substitution and graph only if asked.
Answer:
Step-by-step explanation:
Answer:
x<=5
Step-by-step explanation:
Two things
- direction its pointing is always how the sign will look like
- if the circle is shaded it will have an "or equals to" sign; if its blank, there is only the "greater/lesser" sign
I'd say 100 even, don't know if this is a real question or not.
x=smaller number
y=larger number
x+y=12
y=3x-6
Let's begin with the first equation...
x+y=12
Let's substitute...
x+(3x-6)=12
4x-6=12
Let's add 6 to both sides as we proceed to isolate x...
6+4x-6=12+6
4x=18
Let's divide both sides by 4...
(4x)/4=18/4
x=9/2=4.5---smaller number
12-4.5=7.5s larger number