Question

5 x ( _ + 7)= 5x9+5x7

Answer 1

Answer:

9

Step-by-step explanation:

it depends on formula

a*(b+c)=a*b+a*c

Answer 2

Answer:

let the number be x

5 × (x+7) = 5×9+5×7

5x + 35 = 45 + 35

5x = 45 + 35 - 35

5x = 45

x = 45/5

x = 9