If you would like to solve a set of equations, you can do this using the following steps:

equation a: y = 15 - 2z /*(-2)
equation b: 2y = 3 - 4z
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-2y = (-2) * (15 - 2z)
-2y = -30 + 4z
2y = 3 - 4z

The mistake was made at step 2: −2y = 15 − 2z [equation a in step 1 is simplified.]. The correct simplification would be <span>-2y = -30 + 4z. </span>

6 0

3 years ago

7g:1kg to its simplest form

hammer [34]

Answer:

7kg:1kg=7:1 itself

Because 7 and 1 has one '1' as a common factor, so they can't be simplified

5 0

4 years ago

George ate 3/8 of a container of food.silvia ate 1/5 from the same container of food.what amount remaining in the contianer

MAVERICK [17]

Amount remaining would be: 1-(3/8+1/5) = 1-23/40 = 17/40

So, 17/40 is your answer.......

7 0

4 years ago