kelis2007j
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Write a two-column proof.
Given: mZGFI=138°
Prove: mZEFI=44°
1. mZGFI=138°
2. mZGFE+mZEFI=mZGFI
3. mZGFE+mZEFI=
4. mZGFE=(9x-5),
mZEFI=4x°
5. 9x-5+4x=138
6. = 138
7
x=
8. x=
9. mZEFI=
0
(9x-5)°
F
4x0
1. Given
2.
3. Substitution Property, (Steps 1.2)
4. Given
5.
6. Combine like terms.
7. Addition Property of Equality
8. Division Property of Equality
9. Substitution Property, (Steps 4, 8)

Write a twocolumn proof Given mZGFI138 Prove mZEFI44 1 mZGFI138 2 mZGFEmZEFImZGFI 3 mZGFEmZEFI 4 mZGFE9x5 mZEFI4x 5 9x54x138 6 138 7 x 8 x 9 mZEFI 0 9x5 F 4x0 1 class=


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