a + 2a + 4 = 40
3a + 4 - 4 = 40 - 4
3a/3 = 36/3
a= 12
2(12) + 4 or 40 - 12 = your answer
Ana R.
asked 05/14/19I need to see how to work out the problem setting up the equations
a + 2a + 4 = 40
3a + 4 - 4 = 40 - 4
3a/3 = 36/3
a= 12
2(12) + 4 or 40 - 12 = your answer
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