Please help! if anybody is good at equivalent polynomial expressions please help!!
1 answer:
The one you have highlighted is correct
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Answer:
13.1148770486
.....................,...
A) 9(x + 4) = 27
9x + 36 = 27
9x = 27 - 36
9x = -9
x = -9 ÷ 9
x = -1
B) x/3 - 5 = 6
x/3 = 6 + 5
x/3 = 11
x = 11 × 3
x = 33
C) 15 + 3 ( x -7 ) = -30
15 + 3x - 21 = -30
3x + 15 - 21 = -30
3x - 6 = -30
3x = -30 + 6
3x = -24
x = -24 ÷ 3
x = -8
a^2 + b^2 = c^2
a^2 = 6^2 + √117^2
a^2 + 36 = 117
a^2 = 117 - 36
a^2 = 81
a = √81
a = 9
x = 9
I think it’s B okay cutie
Step-by-step explanation:
- 4x-(x+7)=2(x+3)
- 4x-x-7=2x+6
- 3x-2x=6+7
- x=13
hope it helps.
