Solve the system, using substitution. One point for correct steps, one point for correct ordered pair, (a,b).
a + b = 4 and 2a + 3b = 11

Question

Solve the system, using substitution. One point for correct steps, one point for correct ordered pair, (a,b).
a + b = 4 and 2a + 3b = 11

anonymous · Answer

Do you know how to get a by itself in the first equation?

anonymous · Answer

this is the question

anonymous · Answer

Yeah, but if you just look at "a+b=4" how do you get a on one side of the = by itself?
I know the answer, but you have to learn how to do it... I'm trying to figure out what you know and what you don't know.

anonymous · Answer

ok all i have to do is figure out the numbers right

anonymous · Answer

Oh goodness.

a+b=4, if you subtract b from both sides, what do you have?

anonymous · Answer

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