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babunello [35]
3 years ago
7

Evaluate the expression: 1 - 2(x-y) when x = -2, y = 1

Mathematics
2 answers:
ValentinkaMS [17]3 years ago
7 0

Answer:

7

Step-by-step explanation:

  1. Plug in the values of x and y: 1 - 2(-2 - 1)
  2. Solve what's in parenthesis: -2 - 1 = -3
  3. Plug in -3: 1 - 2(-3)
  4. 2 × -3 = -6
  5. Plug -6 in: 1 - -6
  6. Simplify: 1 + 6
  7. 1 + 6 = 7

I hope this helps!

Vedmedyk [2.9K]3 years ago
7 0

Answer:

7

Step-by-step explanation:

Substitute the values into the corresponding variables.

1 - 2(-2 - 1)

1 + 4 + 2

= 7

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