2×-8.125=18.125
2x=18.125+8.125
2x=26.25
x=26.25÷2
x=13.125
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2×-8.125=18.125
2x=18.125+8.125
2x=26.25
x=13.125
2×-8.125=18.125
2x=18.125+8.125
2x=26.25
x=26.25÷2
x=13.125
2×-8.125=18.125
2×-8.125+8.125 =18.125+8.125
2×=26.25
2×÷2=26.25÷2
x=13.125