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3 years ago

If x equals 3, then find the matching value for y. -7x-4y=-5

Mathematics

2 answers:

aliina [53]3 years ago

7 0

-7(3)-4y=-5

-21-4y=-5

-4y = 16

y=-4

pishuonlain [190]3 years ago

3 0

If x = 3
- 7x - 4y = -5 is the same as -7*3 - 4y = -5
hence -21 - 4y = -5
4y = -16
y = -4

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