Question

111.
iv.
Solve : 7 + 5x - 3x = 21


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Answer 1

Answer:

here is your answer

Step-by-step explanation:

7+5x-3x=21

7-2x=21

-2x=21-7

-2x=14

-x=14/2

-x=7

X=-7

Answer 2

✯Question✯

• Solve 7 + 5x - 3x = 21

✦We shall find x✦

• 7 + 5x - 3x = 21
• 7 + 2x = 21
• 2x = 21 - 7
• 2x = 14
• x = ¹⁴⁄₂
• x = 7

➫The value of x is 7

✬Verification✬

• 7 + 5x - 3x = 21
• 7 + 5(7) - 3(7) = 21
• 7 + 35 - 21 = 21
• 42 - 21 = 21
• 21 = 21
• L.H.S = R.H.S

➺The value of x is 7