Algebra-1

To determine which equation has the solution x = 10, we need to substitute x = 10 into each equation and see if it holds true.

Option A: 0.7x – 1.4 = 4.2

0.7 × 10 – 1.4 = 7 – 1.4 = 0 ≠ 4.2

This equation does not hold true.

Option B: 0.8x + 3.2 = 13.2

0.8 × 10 + 3.2 = 8 + 3.2 = 11.2 ≠ 13.2

This equation does not hold true.

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