Question

7 + 5x - 3x = 21solve the following e
questions ​

Answer 1

Answer:

X=7

Step-by-step explanation:

7+5x-3x = 21

7-7+5-3x=21-7

5x-3x=14

(5×7)×(3×7)=35-21=14

Thus x=7

Answer 2

$\huge{\boxed{\boxed{\red{\ulcorner{\mid{\overline{\underline{\bf{Answer:-}}}}}\mid}}}}$

$\huge \red \rightarrow \: x \: = 7.$

$\rightarrow 7 + 5x - 3x = 21. \\ \\ \rightarrow 2x = 21 - 7. \\ \\ \rightarrow 2x = 14. \\ \\ \rightarrow \: x = \frac{ \cancel 1 \cancel 4}{ \cancel 2} . \\ \\ \rightarrow \: x = 7.$

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