Part A: Sasha's solution of the equation incorrect. The solution x = 7.
Part B: The equation have They are unique solutions.
According to the question,
Sasha solved an equation, as shown below:
Step 1: 8x = 56
Step 2: x = 56 – 8
Step 3: x = 48
Step 2 is incorrect, the correct steps to find x, we would divide both sides by 8 so,
8 / 8x = 8 / 56
x = 7.
An equation can have infinitely many solutions only if the system of an equation has infinitely many solutions when the two lines are coincident, and they have the same y-intercept. If the two lines have the same y-intercept and the slope, they are actually in the same exact line. Then the have infinitely many solutions.
But, the given equation have unique solutions. Thus, x=7.
Hence, Part A: Sasha's solution incorrect. The solution x = 7.
Part B: They are unique solutions solutions.
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