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Mathematics

1 answer:

ycow [4]2 years ago

5 0

<span>I can not see the drop-down menus, but here's the solution:

</span> $3+4d-14=15-5d-4d \\ -11 + 4d = 15 - 9d \\ 4d+9d=15+11 \\ 13d=26 \\ d=2$ <span>
</span>

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