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Evaluate 2-(-4)+(-y) where y=7.

Evaluate 2−(−4)+(−y) 2-(-4)+(-y) where y=7 y=7 .

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Full solution

Q. Evaluate 2−(−4)+(−y) 2-(-4)+(-y) where y=7 y=7 .
  1. Substitute y value: First, we need to substitute the value of yy into the expression.\newlineSubstitute y=7y = 7 into the expression 2−(−4)+(−y)2 - (-4) + (-y).\newlineCalculation: 2−(−4)+(−7)2 - (-4) + (-7)
  2. Simplify expression: Next, we simplify the expression by performing the operations in the correct order. Since there are no parentheses that alter the order of operations, we proceed with addition and subtraction from left to right. Calculation: 2+4−72 + 4 - 7
  3. Add numbers: Now, we add 22 and 44 together.\newlineCalculation: 2+4=62 + 4 = 6
  4. Subtract final result: Finally, we subtract 77 from the result of the previous step.\newlineCalculation: 6−7=−16 - 7 = -1

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