Answer:
x = -0.76
Step-by-step explanation:
-7x + 29 = 6 (8 + 3x)
-7x + 29 = 48 + 18x
-7x = 48-29 + 18x
-7x = 19 + 18x
-7x-18x = 19
-25x = 19
x = 19/-25
The answer is she lost 9 matches
$7,000
1800 = 1450 + 0.05X
0.05X = 350
X = 7000