Question

ANSWER BRIEFLY AND FAST FOR GUARANTEED BRAINLY AND POINTS!

Answer 1

Answer:

See below

Step-by-step explanation:

$2(x+5)-3 =15$

Using the distributive property in the LHS we get

$2x+10-3 =15$

$2x+7=15$

Now add -7 both sides. So we have the subtraction property of equality.

$2x+7+(-7)=15+(-7) \text{ This is what I meant for add}$  

$2x+7-7=15-7$

$2x=8$

Now divide both sides by 2. So we have the division property of equality

$\dfrac{2x}{2} =\dfrac{8}{2}$

$x=4$