Question

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Answer 1

Explanation:

4x + 15 = 3

Subtract 15 from both sides

4x + 15 - 15 = 3 - 15

4x = -12

Divide both sides by 4

4x/4 = -12/4

x = -3

Check:

substitute x = -3 in the LHS of the equation,

4*(-3) + 15 = -12 + 15

= 3 = RHS