Question

find 'z' if 3(5z-7)-2(9z-11)=4(8z-13) -17

Answer 1

Answer:

z=2

Step-by-step explanation:

15z-21-18z+22=32z-52-17

-3z+1=322-69

-3-35z=-70

z=70/35

z=2

Answer 2

Step-by-step explanation:

Step by step solution :

STEP1

:

Equation at the end of step 1

((3•(5z-7))-(2•(9z-11)))-(4•(8z-13)-1) = 0

STEP2

:

Equation at the end of step 2

((3 • (5z - 7)) - 2 • (9z - 11)) - (32z - 53) = 0

STEP3

:

Equation at the end of step 3

(3 • (5z - 7) - 2 • (9z - 11)) - (32z - 53) = 0

STEP4

:

Equation at the end of step 4

54 - 35z = 0

STEP5

:

Solving a Single Variable Equation

Solve : -35z+54 = 0

Subtract 54 from both sides of the equation :

-35z = -54

Multiply both sides of the equation by (-1) : 35z = 54

Divide both sides of the equation by 35:

z = 54/35 = 1.543

ans→

z = 54/35 = 1.543