What is the answer to 5r+2(3r-1)=-46 ?

The answer to 5r+2(3r-1)=-46 is r=-4

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5r+2(3r-1)=-46

5 r + 2 (3 r - 1) = - 46

r = - 4

Solution steps

5 r + 2 (3 r - 1) = - 46

Expand

2 (3 r - 1) : 6 r - 2

5 r + 6 r - 2 = - 46

Add similar elements:

5 r + 6 r = 11 r

11 r - 2 = - 46

Move

2

to the right side

11 r = - 44

Divide both sides by

11

r = - 4

x, x + 8 y = 7

y, x = \frac{3 yz}{4}

5 x - 3 = 10 x - 6

\frac{x}{3} - 4 = - 8

h (a) = 0.9 (200 - a)