3 years ago

No links please

Mathematics

2 answers:

amm18123 years ago

7 0

74+73 make the sum 147 and 50-25 make the difference 25

Serhud [2]3 years ago

5 0

86 and 61.

x + y = 147
x - y = 25

I always found second setting that second equation up was hardest. How do I know which one comes first? You just keep them in the same order as the first math equation.

So let’s solve for x in terms of y:
x - y = 25
x = 25 + y

Then substitute that into your first equation:
x + y = 147
(25 + y) + y = 147
2y = 122
y = 61

x = 25 + y = 25 + 61 = 86

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