Solve for x
x=92
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92+93+x+92+91+89+88=91\times 7
Multiply both sides by 7.
185+x+92+91+89+88=91\times 7
Add 92 and 93 to get 185.
277+x+91+89+88=91\times 7
Add 185 and 92 to get 277.
368+x+89+88=91\times 7
Add 277 and 91 to get 368.
457+x+88=91\times 7
Add 368 and 89 to get 457.
545+x=91\times 7
Add 457 and 88 to get 545.
545+x=637
Multiply 91 and 7 to get 637.
x=637-545
Subtract 545 from both sides.
x=92
Subtract 545 from 637 to get 92.
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