Respuesta :

Hello!

When you have an equation like 7x that means 7 * x, so it's like this.

2 * r = 4, or 2 times a number is 4.

With this, your answer is 2. Because 2 * 2 = 4.

Hope this helps! ☺♥
2r = 4
r = 4/2
r = 2
hope it helps
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