If minus, 7, x, minus, 8, y, equals, 8−7x−8y=8 is a true equation, what would be the value of 6, left bracket, minus, 7, x, minus, 8, y, right bracket6(−7x−8y)?

1 answer

To find the value of 6(-7x-8y), we need to substitute the given expression 8-7x-8y into x and y.

So, 6(-7x-8y) = 6 [8-7x-8y]
= 48 - 42x - 48y