Answer:
x = - 11/4
Step-by-step explanation:
20- 3x = 9 - 7x
Add 7x to both sides
20 - 3x + 7x = 9 - 7x + 7x
20 + 4x = 9
Now,Subtract 20 from both sides
20 -20 + 4x = 9 - 20
4x = -11 {Divide both sides b 4}
x = -11/4
Answer:
= -11/4
Step-by-step explanation:
Rearrange terms
−3+20=9−7
− 3 + 20 = − 7 + 9
Subtract 20 from both sides of the equation
− 3 + 20 = − 7 + 9
− 3 + 20 − 20 = − 7 + 9 − 20
Simplify / Subtract the numbers
− 3 = − 7 − 1 1
Add 7 7x 7x to both sides of the equation
− 3 = − 7 − 1 1
− 3 + 7 = − 7 − 1 1 + 7
Simplify / Combine like terms
4 = − 1 1
Divide both sides of the equation by the same term
4 = −11
4/4 = -11/4
Simplify / Cancel terms that are in both the numerator and denominator
= -11/4
