f or x = 6 an d y = − 1 4 x − 3 y + ( 7 x − 7 y ) = 4 x + 7 x − 3 y − 7 y = 11 x − 10 y = = 11 ⋅ 6 − 10 ⋅ ( − 1 ) = 66 + 10 = 76
Answer: 76
Step-by-step explanation:
By substituting x = 6 and y = − 1 into the expression 4 x − 3 y + ( 7 x − 7 y ) and simplifying, we find that the result is 76 .
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