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Leni [432]
3 years ago
12

Solve 5(z + 6) – 2 = 9z

Mathematics
2 answers:
notsponge [240]3 years ago
6 0

Answer:

z=7

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

5(z+6)−2=9z

(5)(z)+(5)(6)+−2=9z(Distribute)

5z+30+−2=9z

(5z)+(30+−2)=9z(Combine Like Terms)

5z+28=9z

Step 2: Subtract 9z from both sides.

5z+28−9z=9z−9z

−4z+28=0

Step 3: Subtract 28 from both sides.

−4z+28−28=0−28

−4z=−28

Step 4: Divide both sides by -4.

−4z/−4=−28/−4

z=7

Juli2301 [7.4K]3 years ago
4 0
Distribute, so 5z+28+9z, then subtract 5z, and you get 4z=28. Divide by 4 so x=7
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Step 1 to 4 : Simplify

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What equation has infinite solutions
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Find the value of x in a triangle. x-20, x+10, x-20
tatyana61 [14]

The value of the angles should be. (x-40°). , (x-20°), (½x-10°) , not (x-40°) + (x-20°)+(½x-10°)

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So a equation can be made by the given data,

(x-40°) + (x-20°) + (½ x-10°) = 180°

x-40°+x-20°+½x-10° = 180°

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