Question

$7 + 5x - 3x = 21$
ℎ ℎ ..​

Answer 1

Answer:

$7 + 5x - 3x = 21 \\ \\ = > 7 + 2x = 21 \\ \\ = > 2x = 21 - 7 \\ \\ = > 2x = 14 \\ \\ = > x = \frac{14}{2} \\ \\ = > x = 7$

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Answer 2

Answer:

x=7

Step-by-step explanation:

Let's solve your equation step-by-step.

7+5x−3x=21

Step 1: Simplify both sides of the equation.

7+5x−3x=21

7+5x+−3x=21

(5x+−3x)+(7)=21(Combine Like Terms)

2x+7=21

2x+7=21

Step 2: Subtract 7 from both sides.

2x+7−7=21−7

2x=14

Step 3: Divide both sides by 2.

2x/2=14/2

x=7

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