Question four should be -7, question five should be 99, and question six should be 56.
1+4=5, 2+5=12, 3+6=21, 8+11?
1 answer:
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Answer:
She made a mistake in Step 7.
Step-by-step explanation:
Step 1 through 6 are correct. Only from Step 6 to Step 7 the problem comes in: both sides of the equation are multiplied by x, however the x on the left side, by error, becomes 1. The correct state in Step 7 should look like this:
