Question

Solve and verify: 4y + 6z = 8y – 12z​

Answer 1

Answer:

4y + 6z = 8y - 12z

4y -8y = -12z -6z

-4y = -18

4y = 18

y = 18/4

y = 4.5

now take only LHS = 4y + 6z , RHS = 8y -12z

put the value of y in LHS and RHS

4×4.5 + 6z = 8×4.5 - 12z

18 + 6z = 36 - 12z

18 -36 = -12z -6z

-18 = - 18z -----------( here -, - = + )

z = 18/18

z = 1

we find out the value of y and z that are ( 4.5, 1 )

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