To determine which equation has the
solution x = 2, we'll substitute x = 2 into each equation and see which one results in
a true statement.
Option A: 2.8x + 1.6 = 3.4x − 0.2
2.8 × 2 + 1.6 = 3.4 × 2 − 0.2
5.6 + 1.6 = 6.8 − 0.2
7.2 ≠ 6.6
This equation is not true when x = 2.
Option B: 1.3x − 0.7 = 2.6x + 1.5
1.3 × 2 − 0.7 = 2.6 × 2 + 1.5
2.6 − 0.7 = 5.2 + 1.5
1.9 ≠ 6.7
This equation is not true when x = 2.
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