Question

4. Solve each of the following equations by the trial-and-error method: Hy +9=13 (ii) x - 7= 10 (in 4x = 28 (iv) (w/ 11 + x = 19 (vi) = 4 (vii) 2x - 3 = 9 (viii) 3 (ix) 2y + 4 = 3y (x) z - 3 = 2z - 5​

Answer 1

vi) 2x-3=9

put x =0

2(0) -3 =9

0-3=9

-3=9

no x=0 is not the answer

put x=4

2(4)-3=9

8-3=9

5=9

no x=4 is not the answer