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nataly862011 [7]
3 years ago
14

How to do this math exercise 4x-2y=60 4x-3y=26

Mathematics
2 answers:
igomit [66]3 years ago
3 0
4x -2y = 60
4x -3y = 26
(-) (+) (-)
__________
1y = 34
y = 34

To find x
4x -2y = 60
4x -(2)(34) = 60
4x -68 = 60
4x = 60 + 68
4x = 128
x = 32

Answer:
x=32 ; y=34
OLga [1]3 years ago
3 0

Answer:

Step-by-step explanation:

4x - 2y = 60

4x - 3y = 26.....multiply by -1

-----------------------

4x - 2y = 60

-4x + 3y = -26 (result of multiplying by -1)

-----------------------add

y = 34

4x - 2y = 60

4x - 2(34) = 60

4x - 68 = 60

4x = 60 + 68

4x = 128

x = 128/4

x = 32

check...

4x - 3y = 26

4(32) - 3(34) = 26

128 - 102 = 26

26 = 26 (correct)

so x = 32 and y = 34.....or (32,34)

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