simplify 7(3y-5) - 2(10 + 4y)

Working on the left hand side of the expression, we have to distribute the 7 taking into consideration the negative sign. So, 7 multiplied by 3y= 21y and 7X-5= -35. Simplifying the right hand side,being careful of the negative sign, -2X10=-20 and -2X4y=-8y. The resulting equation is therefore 21y-35-20-8y. You can simplify this further by combining the y and the numbers together so the final equation will be 13y-55. 

JK
Answered by Jenany K. Maths tutor

6478 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Simplify : 4(x+5) / x^2+2x-15


Find the equation of the straight line that is tangent to the curve 2x^2 - 5x - 3 =0 when x = 3.


c is a positive integer. Prove that (6c^3 + 30c) / (3c^2 +15) is an even number.


A rectangle has an area of 20cm^2. Its length and width are each enlarged by scale factor 3. What is the area of the enlarged rectangle?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning