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Mazyrski [523]
3 years ago
12

Solve. Show all your work. a) -3x+2 = 5 b) }(4x – 4) = 7 Help help help please

Mathematics
2 answers:
Doss [256]3 years ago
6 0
A) x = -1
b) x = 11 / 4

a explanation)
-3 x + 2 = 5
-3 x + 2 - 2 = 5 - 2
-3 x = 5 - 2
-3 x = 3
-3 x / -3 = 3 / -3
x = 3 / -3
x = -1

b explanation)
4 x - 4 = 7
4 x - 4 + 4 = 7 + 4
4 x = 7 + 4
4 x = 11
4 x / 4 = 11 / 4
x = 11 / 4
Reptile [31]3 years ago
3 0

Answer:

A) x=-1

B) x=11/4

Step-by-step explanation:

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−6x + 14 < −28 OR 9x + 15 ≤ −12. solve for x.
sasho [114]

Answer:

x>7 or x ≤ -3

Step-by-step explanation:

Solving the 1st inequality

-6x +14 < -28 --------------- (Collect like terms)

-6x < -28 - 14

-6x < - 42 -------------------- (Divide both sides by -6)

Note: If you decide an inequality expression by a negative value, the inequality sign changes)

-6x/-6 > -42/-6

x > 7

Solving the 2nd inequality

9x + 15 ≤ −12 ----------- (Collect like terms)

9x ≤ −12 - 15

9x ≤ −27 ------------------(Divide both sides by 9)

9

9x/9 ≤ −27/9

x ≤ -3

Bring both results together, we get

x>7 or x ≤ -3

The final result is complex (i.e. can't be combined together).

4 0
4 years ago
<img src="https://tex.z-dn.net/?f=6%20-%205x%20%2B%206%20%3D%204" id="TexFormula1" title="6 - 5x + 6 = 4" alt="6 - 5x + 6 = 4" a
Elanso [62]

\bf 6-5x+6=4\implies -5x+12=4\implies \stackrel{\textit{adding 5x to both sides}}{12=4+5x}\\\\\\\stackrel{\textit{subtracting 4 to both}}{8=5x}\implies \cfrac{8}{5}=x\implies 1\frac{3}{5}=x

5 0
3 years ago
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torisob [31]

Answer:

700

Step-by-step explanation:

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3 years ago
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poizon [28]
<span>2x + x = 12
=> x =12/3 =4
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3 years ago
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jarptica [38.1K]

Answer:

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Step-by-step explanation:

the only two factors of 54ab^2 and 54ab is 1 and 54ab and the greatest of that would be 54ab.

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3 years ago
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