Question #6143

4.2z=4(0.6z-1.2)

Expert's answer

opening the braces we get

4.2z=4*0.6z-4*1.2=2.4z-4.8

Substracting 2.4z from both parts of the equation we obtain

4.2z-2.4z=-4.8

1.8z=-4.8

Dividing both parts by 1.8 we obtain solution

z=-4.8/1.8=-2.(6)

4.2z=4*0.6z-4*1.2=2.4z-4.8

Substracting 2.4z from both parts of the equation we obtain

4.2z-2.4z=-4.8

1.8z=-4.8

Dividing both parts by 1.8 we obtain solution

z=-4.8/1.8=-2.(6)

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