Select two equations that have infinitely many solutions. a 2(7 – 4x) = 4(5 – 2x) – 6b 6(x – 9) = 6x – 54 + xc 4(x + 4) = 2(2x + 5) + 6d 5(x – 8) + 10 = 5(x + 2) pls me im on a math test explain how

a and c

for infinitely many solutions we require both left and right sides to be equal

distribute and simplify

a

14 - 8x = 20 - 8x - 6 = 14 - 8x ← both sides equal so infinite solutions

b

6x - 54 = 6x - 54 + x = 7x - 54 ← not equal

c

4x + 16 = 4x + 10 + 6 = 4x + 16 ← both sides equal so infinite solutions

d

5x - 40 + 10 = 5x + 10

5x - 30 = 5x + 10 ← not equal

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