Question

Andy received $160 for his birthday this year. This was $30 less than one-half the amount he received last year. Which equation, when solved for x, gives the amount Andy received for his birthday last year?

Answer 1

x=380, he received $380 last year for his birthday.

Explanation:

the equation for this is 1/2x=160+30 now solve

1/2x=190-combine like terms

÷1/2 ÷1/2x-divide on both sides

x=380 (the equation could also be 1/2x-30=160 both equations are the same)

Answer 2

$380

Explanation:

He has received $160 this year and this amount is $30 less than 1/2 from last year

x × 1/2 - 30 = 160 + 30 and x/2 = 190 multiply both sides by 2

x = 380