What is the answer to -1.6r+5=-7.8 ?

The answer to -1.6r+5=-7.8 is r=8

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-1.6r+5=-7.8

- 1.6 r + 5 = - 7.8

r = 8

Solution steps

- 1.6 r + 5 = - 7.8

Multiply both sides by

10

- 16 r + 50 = - 78

Move

50

to the right side

- 16 r = - 128

Divide both sides by

- 16

r = 8

- 2 x + 18 = 2 x + 40

x, 9 x - \frac{1}{2} y = - 4

I, A = P + I

7 + 3 (2 g - 6) = - 29

- 18 = 5 (2 - x) + 2