Answer:
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Step-by-step explanation:
Answer:
see explaination
Step-by-step explanation:
the diagram shows two equal parts being the divided by two in the equations. The parts are worth 8 meaning if you divide 16 by 8 it is 2 because there are two parts.
<span>-3a+7b=-16
-9a+5b=16
multiply 1st equation by 3
</span><span>-9a + 21b = -48
-9a + 5b =16
------------------------subtract
16b = -64
b = - 4
</span>-3a+7b=-16
-3a+7(-4)=-16
-3a = -16 +28
-3a = 12
a = -4
answer
a. first choice
<span>The values of a and b are both equal to –4.</span>
The answer is the third one because the answer to 4-4 is 0.
Answer:
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