Question

how to solve
1.seven taken away from twice a number is 27.
2.A number multiplied by 4 gives 64.

Answer 1

1. Let the number be x.
2x-7=27
2x=27+7
2x=34
x=34/2
x=17
2. Let the number be x.
4x=64
x=64/4
x=16

Answer 2

1.)Let the number be x
x-7=27
so,x=20

2.) Let the number be y
y*4=64
so,y=64/4
y=16.....