Step-by-step explanation:
d = 4m +7n
d - 4m = 7n
(d -4m)/7 = n
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Answer:
The answer is A. Substitution
Step-by-step explanation:
Looking at the previous proofs, you can see that:
∠Y≅∠4
∠Z≅∠6
∠X + ∠4 + ∠6 = 180°
Statement 5 then replaces ∠4 and ∠6 with ∠Y and ∠Z, respectively. Replacing it means that it was substituted with the GIVEN values by the previous statements.
The best answer is the Substitution.
The way i did that in middle school was plot the points then find the slpoe and work it out from there
