5x – 7 and 2x + 6. her work is shown below.
Mathematics, 20.01.2020 07:31, koggebless
3. samira was asked to subtract the expressions
5x – 7 and 2x + 6. her work is shown below.
(5x - 7) - (-2x + 6)
= 5x - 7 + 2x + 6
= 5x + 2x - 7+ 6
= 7x - 1
step 1
step 2
step 3
step 4
in which step did samira make her first mistake?
a) step 1
c) step 3
b) step 2
d) step 4
Answers: 1
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3. samira was asked to subtract the expressions
5x – 7 and 2x + 6. her work is shown below.
5x – 7 and 2x + 6. her work is shown below.
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