Question

Write an equation and solve each problem.
1)Twice a number plus four equals 6. What is the number?
2)Sixteen is seven plus three times a number. Find the number.
3) Find two consecutive integers whose sum is 35.
4) Find three consecutive integers whose sum is 36.

Answer 1

1) 2x+4=6

2x=2

x=1.

2) 16=7+3x
3x=9
x=3

Answer 2

3)x+x+1=35
2x+1=35
2x=34
x=17,x+1=18

Answer 3

4)x+x+1+x+2=36
3x+3=36
3x=33
x=11, x+1=12,x+2=13