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Furkat [3]
4 years ago
10

6x+7y=4x+4y (where y is -4 and the value of x is unknown) find the value of x

Mathematics
1 answer:
faltersainse [42]4 years ago
7 0

Answer:

x = 6

Step-by-step explanation:

Substitute y = - 4 into the equation and solve for x

6x + 7(- 4) = 4x + 4(- 4) ← evaluate

6x - 28 = 4x - 16 ( subtract 4x from both sides )

2x - 28 = - 16 ( add 28 to both sides )

2x = 12 ( divide both sides by 2 )

x = 6

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