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Answer:
x = -3.2
Step-by-step explanation:
Expand brackets
-7.8x - 50.7 = -25.74
Make x the subject of the equation by adding 50.7 on both sides
-7.8x = -25.74 + 50.7
-7.8x = 24.96
24.96/-7.8 = x
x = -3.2