How do you solve the equation #3(x + 7) = 12x – 51#? Algebra Linear Equations Multi-Step Equations with Like Terms 1 Answer Don't Memorise Dec 4, 2015 #color(blue)(x=8# Explanation: #3(x+7) = 12x -51# #3 * (x) + 3*7 = 12x -51# #3x + 21 = 12x -51# # 21 +51 = 12x -3x# # 72= 9x# # x = 72/9# #color(blue)(x=8# Answer link Related questions How do you solve multi step equations by combining like terms? How do you solve multi step equation #w + w + 12 = 40#? How do you solve #3p + 4p + 37 = 79#? How do you solve for f: #f-1+2f+f-3=-4#? How do you combine like terms? How do you combine like terms for #-7mn-2mn^2-2mn + 8#? How do you combine like terms for #3x^2 + 21x + 5x + 10x^2#? What is a term? How do you solve #3v+5-7v+18=17#? How do you solve for x in #5x + 7x = 72#? See all questions in Multi-Step Equations with Like Terms Impact of this question 1284 views around the world You can reuse this answer Creative Commons License