Answer:
x= -0 5 or x =5
Step-by-step explanation:
Split into two equations:−4x+9=11 or −4x+9=−11
Rearrange unknown terms to the left side of the equation:−4x=11−9
Calculate the sum or difference:−4x=2
Divide both sides of the equation by the coefficient of variable:x=2÷(−4)
Remove the parentheses:x=−2÷4
Calculate the product or quotient:x=−0.5
Rearrange unknown terms to the left side of the equation:−4x=−11−9
Calculate the sum or difference:−4x=−20
Divide both sides of the equation by the coefficient of variable:x=−20÷(−4)
Remove the parentheses:x=20÷4
Calculate the product or quotient:x=5
Combine the results:x=−0.5 or x=5
:When x=−0.5
:LHS=|−4×(−0.5)+9|=11
:RHS=11
