Answer is provided in the image attached.
Answer:
Step-by-step explanation:
[tex]4x+3x-7=49\qquad\text{combine like terms}\\\\(4x+3x)-7=49\\\\7x-7=49\qquad\text{add 7 to both sides}\\\\7x-7+7=49+7\\\\7x=56\qquad\text{divide both sides by 7}\\\\\dfrac{7x}{7}=\dfrac{56}{7}\\\\x=8[/tex]
