What is the simplified form of the expression? 15y – 3(4y + 10)

2 answers:

7 0

15y – 3(4y + 10)
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Distribute
= 15y + (-3) (4y) + (-3) (10)= 15y + -12y + -30
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Combine the Like Terms
= 15y + -12y + -30= (15y + -12y) + (-30)= 3y + -30
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3y - 30 should be your answer

sattari [20]3 years ago

4 0

Hello!

Expression: 15y - 3(4y + 10)

The first step is to distribute.To do this we have to multiply the number that is before the brackets separately by all the number in the bracket.

15y + (-3)(4y) + (-3)(10)
15y + -12y + -30

Next we will combine like terms:

15y + -12y + -30= (15y + -12y) + (-30)
3y + -30

The terms we combined are: (15y + -12y)

Final answer: 3y - 30

Hope I helped you! (:

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Can y’all help me plss

Troyanec [42]

In a parallelogram,

⇒the angles adjacent to each other

⇒ are of the same measure

⇒so

∠A = ∠C

∠B = ∠D

Let's solve:

∠A = ∠C

$7z +5 = 8z - 10\\5+10=8z-7z\\8z-7z=5+10\\z = 15$

∠B = ∠D

$5w-30=3w+10\\5w-3w=30+10\\2w = 40\\w=20$

Let's check:

⇒ for all quadrilaterals like a parallelogram

⇒all the angle measures added up to 360, so:

$(7z+5)+(8z-10)+(5w-30)+(3w+10)=360\\(7(15)+5)+(8(15)-10)+(5(20)-30)+(3(20)+10)=360\\(105+5)+(120-10)+(100-30)+(60+10)=360\\110+110+70+70=360\\220+140=360\\360=360$