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OpenStudy (anonymous):
What is the value of the expression |x| + |y + z| when x = –7, y = 8, and z = –11?
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OpenStudy (anonymous):
plug in the values and evaluate
OpenStudy (anonymous):
\(|-7|+|8+(-11)|\)
OpenStudy (anonymous):
what's the absolute value of -7?
OpenStudy (anonymous):
what's 8 + (-11) = ? what's the absolute value of that result?
OpenStudy (anonymous):
19?
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OpenStudy (anonymous):
nope... 8 + (-11) = 8 + [(-8) + (-3)] = [8 + (-8)] + (-3) = 0 + (-3) = -3 what's the absolute value of -3?
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