Miss Rockwell surveyed her class and found that 12 out of 30 students chose peaches as their favorite fruit write the number of
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2(x + 7) + x = 20
Distribute 2 inside the parentheses.
2x + 14 + x = 20
Combine like terms.
3x + 14 = 20
Subtract 14 from both sides.
3x = 6
Divide both sides by 3.