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blondinia [14]
3 years ago
8

HelPppPpPpPpPP PleasEEeEeee ASAP

Mathematics
2 answers:
algol133 years ago
6 0

Answer:

Step-by-step explanation:

AB is equal to AC

so x + 7 = 2x - 1

then simplify

7 = x - 1

x = 8

plug it back into AB

8 + 7 = 15

so AB is 15

Ganezh [65]3 years ago
3 0

Answer:

15

Step-by-step explanation:

AB=AC

x + 7 = 2x - 1

8 = x

now you plug in 8 for x in the equation for line AB

(8) + 7 = 15

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