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Alja [10]
3 years ago
9

Solve 15-2x=3x the solution is x=

Mathematics
2 answers:
Vesnalui [34]3 years ago
8 0

Answer:

x=3

Step-by-step explanation:

15-2x=3x

solve for x:

15=5x

divided by 5:

3=x

Xelga [282]3 years ago
8 0

Answer:

x = 3

Step-by-step explanation:

15  -2x = 3x     {Add 2x to both sides}

15 = 3x + 2x

15 = 5x

15/5 = x         {divide both sides by 5}

x  = 3

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1. In the figure below ABC∡=153°, ABD∢=(5x+5)°, and DBC∢=(3x+12)°. Find the measure of ABD∢ and DBC∢. Show all work
vodka [1.7K]

By angle addition postulate,

m(∠ABD) + m(∠DBC) = m(∠ABC)

Now substitute the values of each angle,

(5x + 5)° + (3x + 12)° = 153°

Combine like terms of the expression,

(5x + 3x) + (5 + 12) = 153

8x + 17 = 153

8x = 153 - 17

x = \frac{136}{8}

x = 17

Substitute the value of 'x' to get the measure of each angle,

m(∠ABD) = (5x + 5)

                = 5(17) + 5

                = 90°

m(∠DBC) = (3x + 12)

                = 3(17) + 12

                = 63°

Learn more,

brainly.com/question/4838302

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2 years ago
Lucas had 18 markers. He lent 1/6 of them to Isaac and 1/9 of them to Abby. In total, how many markers did he lend?
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