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2 years ago

If 2x+3+7x=-24, what is the value of x?

Mathematics

2 answers:

Harrizon [31]2 years ago

8 0

X= -3

2x+3+7x=-24
9x+3= -24
9x= -27
x= -3

UkoKoshka [18]2 years ago

5 0

[ Answer ]

X = -3

[ Explanation ]

Group Like Terms:

2x + 7x + 3 = -24

Add Similar Elements: 2x + 7x = 9x

9x + 3 = -24

Subtract 3 From Both Sides:

9x + 3 - 3 = (-24) - 3

Simplify:

9x = -24

Divide Both Sides By 9:

9x / 9 = -24 / 9

Simplify:

= -3

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kirza4 [7]

2x+3y=17 --- 1
3x+6y=30 --- 2
x+2y=10
x=10-2y --- 3
Sub 3 into 1,
2(10-2y)+3y=17
20-4y+3y-17=0
3-y=0
y=3 --- 4
Sub 4 into 3,
x=10-2(3)
x=4

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