Let x = 3y 4z + 7. What happens to the value of x if the
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Let x = 3y − 4z + 7. What happens to the value of x if the value of y decreases by 2 and the value of z is increased by 1?
F. It increases by 3.
G. It increases by 5.
H. It decreases by 1.
J. It decreases by 10.
K. It is unchanged.
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The correct answer is J To solve this problem replace y with y 2 and z with z ...View the full answer
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