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Ryan Brennan
Mathematics
5 May, 19:27
What is x + 4z - 5 - 3x, when x = 2 and z = 3x?
+5
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1
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Piper Zavala
5 May, 19:47
0
15
Step-by-step explanation:
Since we know x = 2 and z = 3x, let's find z by substituting the value for x into z:
z = 3 (2) = 6
Now that we have the values of both x and z, we can substitute them into the expression and simplify:
x + 4z - 5 - 3x
= 2 + 4 (6) - 5 - 3 (2)
= 2 + 24 - 5 - 6
= 15
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