Step-by-step explanation:
-4x + 9y = -22
-9x -9y = 126
-13x = 104
x = -8
8 +`y = 14
y = 6
(-8,6)
Answer:
The answer is symmetrical
x
x x x
x x x x x
x x x x x x x
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1 2 3 4 5 6 7
yes, the triangle are congruent by SAS
it's area is 1/2 b×h
1/2×7×3.8
13.3