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bezimeni [28]
3 years ago
14

Plz answer me will mark as brainliest ​

Mathematics
1 answer:
Gemiola [76]3 years ago
4 0

If x = 5, y = -3. evalue 3x-2y

Thus, substitute x = 5 and y = -3

3(5)-2(-3) = 15-(-6) = 15+6 = 21 #

Simplify 6x-20y+7z-8x+25y-11z

Subtraction and Addition, just subtract and addition of polynomial. Same variable subtract/addition with same variable.

Thus, (6x-8x)+(-20y+25y)+(7z-11z) = -2x+5y-4z #

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